Beat the egg whites into snow. Make a batter from the egg yolks, sugar, butter, flour and baking powder. Fold in the egg whites and finally the chocolate shavings.
Paint everything on a sheet. Now distribute the cherries on the dough. Make crumble from the remaining ingredients and spread over the cherries.
Bake the whole thing at 175 ° C top / bottom heat for about 30 - 40 minutes, depending on the oven.