Cream butter, sugar, vanillin sugar and salt. Stir in the eggs one by one. Alternately stir in flour and 100 ml milk. Halve the dough. Stir in one half cocoa and 2-3 tablespoons milk.
Preheat the waffle iron and spread with oil. Put light and dark dough in patches on the waffle iron and bake 8 waffles one after the other. Wash, clean and quarter the strawberries and puree them with a chopping stick. Mix with quark and icing sugar. Pass the strawberry quark to the cow stain waffles