Stir the margarine until creamy and stir in the sugar and vanilla sugar. Then add the mashed banana and stir in as well. Mix the flour, pudding powder and baking powder and stir into the dough alternately with the water. Knead everything well and use two tablespoons to place the dough in portions on two baking sheets lined with baking paper, leaving a little space between the Americans as they will still rise while baking. If necessary, you can make the dough a little rounder with the help of a knife.
Then put the trays in the preheated oven and bake at 180 ° (or 160 ° fan oven) for about 20 minutes. After cooling, you can decorate the flat sides of the Americans with icing or chocolate icing as you like.