Easy Chessboard Chocolate Pudding Cake

Name: Easy Chessboard Chocolate Pudding Cake
Prep time: 20 min
Cook time: 1 h
Total time: 1 h 20 min
Cuisine: European
Ingredients: 4 eggs, (medium size); 120 g (2/3 cup) all purpose flour (or type 00 flour); 150 g (2/3 cup) brown sugar; 30 g (1/4 cup) cacao powder; 1 tbsp. baking powder; 2 packs vanilla pudding, (for 500ml (2 cups + 2 tbsp.) liquid each); 1 liter (4, 1/4 cups) milk; 4 tbsp. brown sugar; 2 sachets gelatin powder (for 500 ml (2 cups + 2 tbsp) liquid each); 100 g (1 cup) chopped walnuts