diff --git a/devtools_options.yaml b/devtools_options.yaml
new file mode 100644
index 0000000..fa0b357
--- /dev/null
+++ b/devtools_options.yaml
@@ -0,0 +1,3 @@
+description: This file stores settings for Dart & Flutter DevTools.
+documentation: https://docs.flutter.dev/tools/devtools/extensions#configure-extension-enablement-states
+extensions:
diff --git a/lib/app_drawer.dart b/lib/app_drawer.dart
new file mode 100644
index 0000000..1ddcc04
--- /dev/null
+++ b/lib/app_drawer.dart
@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+import 'package:kalodings/calendar.dart';
+
+class AppDrawer extends StatelessWidget {
+  const AppDrawer({
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Drawer(
+      child: ListView(
+        padding: EdgeInsets.zero,
+        children: [
+          DrawerHeader(
+            decoration: const BoxDecoration(
+              color: Colors.redAccent,
+            ),
+            child: ListTile(
+                leading: IconButton(
+                  icon: const Icon(Icons.close),
+                  onPressed: () {
+                    Navigator.pop(context);
+                  },
+                ),
+                title: const Text('Menü')),
+          ),
+          ListTile(
+            trailing: const Icon(Icons.calendar_month),
+            title: const Text('Kalender'),
+            onTap: () {
+              context.goNamed('calendar');
+            },
+          ),
+          ListTile(
+            title: const Text('Einstellungen'),
+            trailing: const Icon(Icons.settings),
+            onTap: () {},
+          ),
+        ],
+      ),
+    );
+  }
+}
diff --git a/lib/calendar.dart b/lib/calendar.dart
new file mode 100644
index 0000000..84323b0
--- /dev/null
+++ b/lib/calendar.dart
@@ -0,0 +1,20 @@
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+
+class CalendarWidget extends StatelessWidget {
+  const CalendarWidget({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: CalendarDatePicker(
+        onDateChanged: (value) {
+          context.goNamed('perDay', extra: value);
+        },
+        initialDate: DateTime.now(),
+        firstDate: DateTime.now().subtract(const Duration(days: 30)),
+        lastDate: DateTime.now(),
+      ),
+    );
+  }
+}
diff --git a/lib/enter_food_widget.dart b/lib/enter_food_widget.dart
index 71a765d..6bec0f7 100644
--- a/lib/enter_food_widget.dart
+++ b/lib/enter_food_widget.dart
@@ -1,6 +1,9 @@
+import 'dart:developer';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:kalodings/food_entry_bloc.dart';
+import 'package:kalodings/row_with_spacers_widget.dart';
 
 class EnterFoodWidget extends StatefulWidget {
   const EnterFoodWidget({
@@ -32,95 +35,67 @@ class _EnterFoodWidgetState extends State<EnterFoodWidget> {
 
     var kcalPerMassWidget = TextField(
         decoration: const InputDecoration(hintText: "kcal pro 100g"),
+        keyboardType: TextInputType.number,
         controller: kcalPerMassController);
 
+    var enterButton = ElevatedButton(
+        onPressed: () {
+          double massAsNumber = 0.0;
+          double kcalPerMassAsNumber = 0.0;
+
+          try {
+            massAsNumber =
+                double.parse(massController.text.replaceAll(",", "."));
+          } catch (e) {
+            var snackbar =
+                const SnackBar(content: Text("Menge muss eine Zahl sein"));
+            ScaffoldMessenger.of(context).clearSnackBars();
+            ScaffoldMessenger.of(context).showSnackBar(snackbar);
+            return;
+          }
+
+          try {
+            kcalPerMassAsNumber =
+                double.parse(kcalPerMassController.text.replaceAll(",", "."));
+          } catch (e) {
+            var snackbar = const SnackBar(
+                content: Text("'kcal pro 100g' muss eine Zahl sein"));
+            ScaffoldMessenger.of(context).clearSnackBars();
+            ScaffoldMessenger.of(context).showSnackBar(snackbar);
+            return;
+          }
+          try {
+            massAsNumber =
+                double.parse(massController.text.replaceAll(",", "."));
+          } catch (e) {
+            var snackbar =
+                const SnackBar(content: Text("Menge muss eine Zahl sein"));
+            ScaffoldMessenger.of(context).clearSnackBars();
+            ScaffoldMessenger.of(context).showSnackBar(snackbar);
+            return;
+          }
+
+          var entry = FoodEntry(
+              name: nameController.text,
+              mass: massAsNumber,
+              kcalPerMass: kcalPerMassAsNumber);
+
+          log('Entry id: ${entry.id}');
+
+          context.read<FoodEntryBloc>().add(FoodEntryEvent(entry: entry));
+        },
+        child: const Icon(Icons.add));
+
     return Column(
       children: [
         RowWidgetWithSpacers(
           nameWidget,
           massWidget,
           kcalPerMassWidget,
-        ),
-        Padding(
-          padding: const EdgeInsets.all(8.0),
-          child: ElevatedButton(
-              child: const Text("Hinzufügen"),
-              onPressed: () {
-                double massAsNumber = 0.0;
-                double kcalPerMassAsNumber = 0.0;
-
-                try {
-                  massAsNumber =
-                      double.parse(massController.text.replaceAll(",", "."));
-                } catch (e) {
-                  var snackbar = const SnackBar(
-                      content: Text("Menge muss eine Zahl sein"));
-                  ScaffoldMessenger.of(context).clearSnackBars();
-                  ScaffoldMessenger.of(context).showSnackBar(snackbar);
-                  return;
-                }
-
-                try {
-                  kcalPerMassAsNumber = double.parse(
-                      kcalPerMassController.text.replaceAll(",", "."));
-                } catch (e) {
-                  var snackbar = const SnackBar(
-                      content: Text("'kcal pro 100g' muss eine Zahl sein"));
-                  ScaffoldMessenger.of(context).clearSnackBars();
-                  ScaffoldMessenger.of(context).showSnackBar(snackbar);
-                  return;
-                }
-                try {
-                  massAsNumber =
-                      double.parse(massController.text.replaceAll(",", "."));
-                } catch (e) {
-                  var snackbar = const SnackBar(
-                      content: Text("Menge muss eine Zahl sein"));
-                  ScaffoldMessenger.of(context).clearSnackBars();
-                  ScaffoldMessenger.of(context).showSnackBar(snackbar);
-                  return;
-                }
-
-                var entry = FoodEntry(
-                    name: nameController.text,
-                    mass: massAsNumber,
-                    kcal: kcalPerMassAsNumber,
-                    kcalPerMass: 200);
-                context.read<FoodEntryBloc>().add(FoodEntryEvent(entry: entry));
-              }),
+          null,
+          enterButton,
         ),
       ],
     );
   }
 }
-
-class RowWidgetWithSpacers extends StatefulWidget {
-  final Widget widget1;
-  final Widget widget2;
-  final Widget widget3;
-
-  const RowWidgetWithSpacers(this.widget1, this.widget2, this.widget3,
-      {super.key});
-
-  @override
-  State<RowWidgetWithSpacers> createState() => _RowWidgetWithSpacersState();
-}
-
-class _RowWidgetWithSpacersState extends State<RowWidgetWithSpacers> {
-  @override
-  Widget build(BuildContext context) {
-    return Row(
-      mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-      children: [
-        const Spacer(flex: 1),
-        Expanded(flex: 4, child: widget.widget1),
-        Expanded(
-          flex: 4,
-          child: widget.widget2,
-        ),
-        Expanded(flex: 4, child: widget.widget3),
-        const Spacer(flex: 1),
-      ],
-    );
-  }
-}
diff --git a/lib/food_entry_bloc.dart b/lib/food_entry_bloc.dart
index 5218865..51889ae 100644
--- a/lib/food_entry_bloc.dart
+++ b/lib/food_entry_bloc.dart
@@ -1,9 +1,10 @@
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:quiver/core.dart';
+import 'package:uuid/uuid.dart';
 
-class FoodEntryBloc extends Bloc<FoodEntryEvent, FoodEntryState> {
+class FoodEntryBloc extends Bloc<FoodEvent, FoodEntryState> {
   FoodEntryBloc(super.initialState) {
     on<FoodEntryEvent>(addFoodEntryToState);
+    on<FoodDeletionEvent>(deleteFood);
   }
 
   void addFoodEntryToState(FoodEntryEvent event, Emitter<FoodEntryState> emit) {
@@ -11,13 +12,25 @@ class FoodEntryBloc extends Bloc<FoodEntryEvent, FoodEntryState> {
     newState.addEntry(event.entry);
     emit(newState);
   }
+
+  void deleteFood(FoodDeletionEvent event, Emitter<FoodEntryState> emit) {
+    state.foodEntries.removeWhere((entry) => entry.id == event.entryID);
+    emit(FoodEntryState.from(state));
+  }
 }
 
-class FoodEntryEvent {
+class FoodEvent {}
+
+class FoodEntryEvent extends FoodEvent {
   final FoodEntry entry;
   FoodEntryEvent({required this.entry});
 }
 
+class FoodDeletionEvent extends FoodEvent {
+  final String entryID;
+  FoodDeletionEvent({required this.entryID});
+}
+
 class FoodEntryState {
   final List<FoodEntry> foodEntries;
 
@@ -35,42 +48,17 @@ class FoodEntryState {
   void addEntry(FoodEntry entry) {
     foodEntries.add(entry);
   }
-
-  @override
-  int get hashCode {
-    return hashObjects(foodEntries);
-  }
-
-  @override
-  operator ==(other) {
-    if (other.runtimeType != FoodEntryState) return false;
-
-    other = other as FoodEntryState;
-
-    if (foodEntries.length != other.foodEntries.length) return false;
-
-    for (var i = 0; i < foodEntries.length; i += 1) {
-      if (foodEntries[i].name != other.foodEntries[i].name ||
-          foodEntries[i].mass != other.foodEntries[i].mass ||
-          foodEntries[i].kcalPerMass != other.foodEntries[i].kcalPerMass ||
-          foodEntries[i].kcal != other.foodEntries[i].kcal) {
-        return false;
-      }
-    }
-    return true;
-  }
 }
 
 class FoodEntry {
   final String name;
   final double mass;
   final double kcalPerMass;
-  final double kcal;
+  final String id;
 
   FoodEntry({
     required this.name,
     required this.mass,
     required this.kcalPerMass,
-    required this.kcal,
-  });
+  }) : id = const Uuid().v1();
 }
diff --git a/lib/food_entry_widget.dart b/lib/food_entry_widget.dart
index b342e8a..f01810a 100644
--- a/lib/food_entry_widget.dart
+++ b/lib/food_entry_widget.dart
@@ -1,23 +1,29 @@
 import 'package:flutter/material.dart';
-import 'package:kalodings/enter_food_widget.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:kalodings/food_entry_bloc.dart';
+import 'package:kalodings/row_with_spacers_widget.dart';
 
 class FoodEntryWidget extends StatelessWidget {
-  final String name;
-  final double mass;
-  final double kcalPerMass;
+  final FoodEntry entry;
 
-  const FoodEntryWidget(
-      {super.key,
-      required this.name,
-      required this.mass,
-      required this.kcalPerMass});
+  const FoodEntryWidget({super.key, required this.entry});
 
   @override
   Widget build(BuildContext context) {
-    return RowWidgetWithSpacers(
-      Text(name),
-      Text(mass.toString()),
-      Text(kcalPerMass.toString()),
+    return Card(
+      child: RowWidgetWithSpacers(
+        Text(entry.name),
+        Text(entry.mass.toString()),
+        Text(entry.kcalPerMass.toString()),
+        Text((entry.mass * entry.kcalPerMass / 100).toString()),
+        IconButton(
+            onPressed: () {
+              context
+                  .read<FoodEntryBloc>()
+                  .add(FoodDeletionEvent(entryID: entry.id));
+            },
+            icon: const Icon(Icons.delete_forever_rounded)),
+      ),
     );
   }
 }
diff --git a/lib/main.dart b/lib/main.dart
index 12c7920..d835ed4 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,5 +1,9 @@
+// ignore_for_file: prefer_const_constructors
+
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:go_router/go_router.dart';
+import 'package:kalodings/calendar.dart';
 import 'package:kalodings/food_entry_bloc.dart';
 import 'package:kalodings/perday_widget.dart';
 
@@ -16,13 +20,38 @@ class MainApp extends StatelessWidget {
       create: (BuildContext context) {
         return FoodEntryBloc(FoodEntryState.init());
       },
-      child: const MaterialApp(
-        home: Scaffold(
-          body: Center(
-            child: PerDay(),
-          ),
-        ),
+      child: MaterialApp.router(
+        theme: ThemeData.dark(),
+        routerConfig: router,
       ),
     );
   }
 }
+
+final router = GoRouter(routes: [
+  GoRoute(
+      path: '/',
+      name: 'perDayToday',
+      builder: (context, state) {
+        return PerDay(DateTime.now());
+      }),
+  GoRoute(
+      path: '/day',
+      name: 'perDay',
+      builder: (context, state) {
+        DateTime day;
+        if (state.extra == null || state.extra is! DateTime) {
+          day = DateTime.now();
+        } else {
+          day = state.extra as DateTime;
+        }
+
+        return PerDay(day);
+      }),
+  GoRoute(
+      path: '/calendar',
+      name: 'calendar',
+      builder: (context, state) {
+        return CalendarWidget();
+      }),
+]);
diff --git a/lib/perday_widget.dart b/lib/perday_widget.dart
index 1e20c04..2769601 100644
--- a/lib/perday_widget.dart
+++ b/lib/perday_widget.dart
@@ -1,43 +1,38 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:kalodings/app_drawer.dart';
 import 'package:kalodings/enter_food_widget.dart';
 import 'package:kalodings/food_entry_bloc.dart';
 import 'package:kalodings/food_entry_widget.dart';
+import 'package:kalodings/sum_widget.dart';
 
-class PerDay extends StatefulWidget {
-  const PerDay({super.key});
-
-  @override
-  State<PerDay> createState() => _PerDayState();
-}
-
-class _PerDayState extends State<PerDay> {
-  String perFoodresult = "Kalorien der Mahlzeit";
-  List<FoodEntryWidget> entryList = [];
+class PerDay extends StatelessWidget {
+  final DateTime day;
+  const PerDay(this.day, {super.key});
 
   @override
   Widget build(BuildContext context) {
-    return BlocListener<FoodEntryBloc, FoodEntryState>(
-      listener: (listenerContext, state) {
-        var newEntryWidgets = <FoodEntryWidget>[];
+    return Scaffold(
+        appBar: AppBar(
+          title: Text(day.toString()),
+        ),
+        drawer: const AppDrawer(),
+        body: BlocBuilder<FoodEntryBloc, FoodEntryState>(
+          builder: (context, state) {
+            return ListView.builder(
+              itemCount: state.foodEntries.length + 2,
+              itemBuilder: (BuildContext itemBuilderContext, int index) {
+                if (index == state.foodEntries.length) {
+                  return const SumWidget();
+                }
+                if (index == state.foodEntries.length + 1) {
+                  return const EnterFoodWidget();
+                }
 
-        for (var entry in state.foodEntries) {
-          newEntryWidgets.add(FoodEntryWidget(
-              name: entry.name,
-              mass: entry.mass,
-              kcalPerMass: entry.kcalPerMass));
-        }
-        setState(() {
-          entryList = newEntryWidgets;
-        });
-      },
-      child: ListView.builder(
-        itemCount: entryList.length + 1,
-        itemBuilder: (BuildContext itemBuilderContext, int index) {
-          if (index + 1 == entryList.length + 1) return EnterFoodWidget();
-          return entryList[index];
-        },
-      ),
-    );
+                return FoodEntryWidget(entry: state.foodEntries[index]);
+              },
+            );
+          },
+        ));
   }
 }
diff --git a/lib/row_with_spacers_widget.dart b/lib/row_with_spacers_widget.dart
new file mode 100644
index 0000000..966457d
--- /dev/null
+++ b/lib/row_with_spacers_widget.dart
@@ -0,0 +1,62 @@
+import 'package:flutter/material.dart';
+
+class RowWidgetWithSpacers extends StatefulWidget {
+  final Widget? widget1;
+  final Widget? widget2;
+  final Widget? widget3;
+  final Widget? widget4;
+  final Widget? widget5;
+
+  const RowWidgetWithSpacers(
+      this.widget1, this.widget2, this.widget3, this.widget4, this.widget5,
+      {super.key});
+
+  @override
+  State<RowWidgetWithSpacers> createState() => _RowWidgetWithSpacersState();
+}
+
+class _RowWidgetWithSpacersState extends State<RowWidgetWithSpacers> {
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.end,
+      children: [
+        Expanded(
+            flex: 5,
+            child: Padding(
+              padding:
+                  const EdgeInsets.symmetric(vertical: 2.0, horizontal: 2.0),
+              child: widget.widget1 ?? Container(),
+            )),
+        Expanded(
+            flex: 5,
+            child: Padding(
+              padding:
+                  const EdgeInsets.symmetric(vertical: 2.0, horizontal: 2.0),
+              child: widget.widget2 ?? Container(),
+            )),
+        Expanded(
+            flex: 5,
+            child: Padding(
+              padding:
+                  const EdgeInsets.symmetric(vertical: 2.0, horizontal: 2.0),
+              child: widget.widget3 ?? Container(),
+            )),
+        Expanded(
+            flex: 5,
+            child: Padding(
+              padding:
+                  const EdgeInsets.symmetric(vertical: 2.0, horizontal: 2.0),
+              child: widget.widget4 ?? Container(),
+            )),
+        Expanded(
+            flex: 5,
+            child: Padding(
+              padding:
+                  const EdgeInsets.symmetric(vertical: 2.0, horizontal: 2.0),
+              child: widget.widget5 ?? Container(),
+            )),
+      ],
+    );
+  }
+}
diff --git a/lib/sum_widget.dart b/lib/sum_widget.dart
new file mode 100644
index 0000000..7b82456
--- /dev/null
+++ b/lib/sum_widget.dart
@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:kalodings/food_entry_bloc.dart';
+import 'package:kalodings/row_with_spacers_widget.dart';
+
+class SumWidget extends StatelessWidget {
+  const SumWidget({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<FoodEntryBloc, FoodEntryState>(
+      builder: (context, state) {
+        var sum = 0.0;
+        for (var entry in state.foodEntries) {
+          sum += entry.kcalPerMass / 100 * entry.mass;
+        }
+
+        return RowWidgetWithSpacers(
+          null,
+          null,
+          const Text("kcal heute:"),
+          Text(sum.toString()),
+          null,
+        );
+      },
+    );
+  }
+}
diff --git a/pubspec.lock b/pubspec.lock
index f51ae8f..cdd190e 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -49,6 +49,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.18.0"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
   fake_async:
     dependency: transitive
     description:
@@ -57,6 +65,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: "25517a4deb0c03aa0f32fd12db525856438902d9c16536311e76cdc57b31d7d1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -83,6 +99,19 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  go_router:
+    dependency: "direct main"
+    description:
+      name: go_router
+      sha256: abec47eb8c8c36ebf41d0a4c64dbbe7f956e39a012b3aafc530e951bdc12fe3f
+      url: "https://pub.dev"
+    source: hosted
+    version: "14.1.4"
   leak_tracker:
     dependency: transitive
     description:
@@ -115,6 +144,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: "623a88c9594aa774443aa3eb2d41807a48486b5613e67599fb4c41c0ad47c340"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   matcher:
     dependency: transitive
     description:
@@ -184,6 +221,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.10.0"
+  sprintf:
+    dependency: transitive
+    description:
+      name: sprintf
+      sha256: "1fc9ffe69d4df602376b52949af107d8f5703b77cda567c4d7d86a0693120f23"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   stack_trace:
     dependency: transitive
     description:
@@ -224,6 +269,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.1"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.2"
+  uuid:
+    dependency: "direct main"
+    description:
+      name: uuid
+      sha256: "814e9e88f21a176ae1359149021870e87f7cddaf633ab678a5d2b0bff7fd1ba8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.4.0"
   vector_math:
     dependency: transitive
     description:
@@ -241,5 +302,5 @@ packages:
     source: hosted
     version: "14.2.2"
 sdks:
-  dart: ">=3.5.0-191.0.dev <4.0.0"
+  dart: ">=3.3.0 <4.0.0"
   flutter: ">=3.18.0-18.0.pre.54"
diff --git a/pubspec.yaml b/pubspec.yaml
index f004bc5..6fe6ed9 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -4,13 +4,15 @@ publish_to: 'none'
 version: 0.1.0
 
 environment:
-  sdk: '>=3.5.0-191.0.dev <4.0.0'
+  sdk: ^3.0.0
 
 dependencies:
   flutter:
     sdk: flutter
   flutter_bloc: ^8.1.5
+  go_router: ^14.1.4
   quiver: ^3.2.1
+  uuid: ^4.4.0
 
 dev_dependencies:
   flutter_test: