For the batter, beat the sugar and vanilla sugar with the eggs until frothy. Add margarine and stir. Mix the flour, cornstarch, baking powder and nuts and stir into the batter alternately with the egg liqueur. Finally add the chocolate sprinkles and stir in. Spread the dough evenly on the prepared baking sheet. Spread the drained cherries on the batter.
For the crumble dough, knead the flour, sugar, cinnamon and softened butter into a crumble dough and spread over the cherries.
Bake in the oven, lower shelf, at 200 ° C for approx. 30-40 minutes. Make a chopstick test. Let cool well and cut into pieces.