How to make
Beat the butter with the powdered sugar. Add the egg yolks one by one. Beat the egg whites to snow with the granulated sugar. Then add them to the butter mixture.
Sift the flour with the baking powder, add the vanilla and mix with the other products. Add the rolled in flour cherries to the blend and knead again.
Pour the mixture into a suitable greased container and bake in a preheated 340°F (170 °C) oven for 30-40 minutes.