How to make
In a bowl, sift the flour, baking soda and cocoa, add the sugar and stir.
Subsequently, add the yoghurt and oil. Stir with a spatula, while trying to make sure the mixture becomes smooth.
Pour the mixture into a 10 1/4″ (26 cm) diameter cake form, laid out with baking paper. Bake in a preheated 390°F (200 °C) oven about 30 min. Cut the cooled layer into rectangular pastries.
For the chocolate sauce, put the chopped butter and all the remaining ingredients for it in a deep, metallic container. Pour it over the pastries.
Once it's cooled, the cakes are ready to serve.
