Marble cake

A simple cake with no berries or extras — the ingredients are usually already in the cupboard.
Ingredients
- eggs — 4
- sugar — 200 g
- vanilla sugar — 10 g
- butter — 130 g
- flour — 100 g
- baking powder — 1 tsp
- cocoa powder — 20 g
Method
- Separate the whites from the yolks.
- Beat the whites with half of the sugar, about 5 minutes.
- Beat the yolks with the softened butter, the other half of the sugar and the vanilla sugar, to a pale, fluffy mixture.
- Add the flour to this mixture.
- Fold in the whites with a spatula until smooth.
- Divide the batter in two. Stir the cocoa into one half.
- Line a tin with baking paper. Spoon in the two batters in layers.
- Bake in an oven preheated to 180°C for about 40 minutes.