INGREDIENTS
•
Makes 20 cookies
•
Ingredients:
•
75g butter
•
75g sugar
•
1 tsp vanilla extract
•
1 egg yolk
•
120g flour
•
1 tsp baking powder
•
1 tbsp cocoa powder
•
1 tbsp milk (or just enough to moisten the dough a bit)
•
chopped chocolate for stuffing the cookies