Mix the butter with sugar, brown sugar and vanilla flavor until frothy.
Mix the oat flakes with the flour, cocoa, baking powder and salt and gradually stir into the butter mixture. Chop the children`s bars and lift them under.
Preheat the oven to 160 ° C fan oven. Line two trays with baking paper,
Cut off small dumplings with a teaspoon and shape them into small balls, place them on the trays with a little space and press flat.
Bake in the preheated oven for about 10 minutes.
Let cool down briefly on the baking sheet, then place on wire rack and let cool down.