It is a moist tray- baked German plum cake. Enjoy this German Pflaumenkuchen with a cup of afternoon tea or coffee. Freeze them for another day if any left.
- Whisk together the flour and baking powder in a mixing bowl. Add in the rest of dough ingredients. Starting on low speed, beat briefly with an electric mixer. Turn speed up to medium and beat until you have a smooth dough. Roll out the dough to 30x40cm onto a parchment lined backing tray.
- Preheat the oven to 180C/350F. Wash, dry and quarter the plums. Cover quark dough with the plum wedges. In a small bowl, combine together the sugar, vanilla sugar and cinnamon powder. Sprinkle the mixture and almond slices (if use)over the cake.
- Bake in the middle of the hot oven for about 35 minutes. Remove from oven. Dust the top with powder sugar. Cut into the squares and serve.