Sour Milk Chocolate cake

Grease a heart-shaped cake tin, prepare oven at 180°C.
220ml thick sour milk (or yoghurt)
200 gr sugar
250 gr butter, melted
220 gr self raising flour
50gr cocoa powder
1 tsp baking soda
½ tsp salt
3 eggs
1 tbsp vanilla extract

Whisk the milk with the sugar and butter; sift the flour with the cocoa, baking soda and salt; add to the milk. Beat the eggs in one by one. Add the vanilla.

Pour the batter into the greased cake mould. Bake in a moderate oven for 40 minutes. Cut in half and sandwich with chocolate buttermilk or cream.