Plum jam cake!

Step 1
Preheat the oven to 180 degrees top/bottom heat (fan oven: 160 degrees). Grease a baking tray (48 x 45 cm) or cover with baking paper. For the dough, beat the eggs, sugar and salt on the highest setting with the whisk of a hand mixer for 3 minutes until frothy. Stir in the lemonade and oil.

Step 2
Finally, mix the flour with the baking powder and stir into the dough. Spread the dough evenly on the prepared baking tray. Bake the cake in the preheated oven for approx. 20 minutes. Allow to cool completely.

Step 3
Spread the plum jam on the cooled base and chill for 30 minutes.

Step 4
For the cream, beat the cream until stiff, adding the cream stiffener. Stir the sour cream and vanilla sugar in a mixing bowl until smooth. Fold in the stiffly whipped cream. Add the cream in portions to the plum jam layer and carefully spread it using a cake lifter. Chill the cake for at least 1 hour.

Step 5
Before serving, sprinkle the plum jam cake with sour cream with a little ground cinnamon. The cake makes about 20 pieces and will keep in the fridge for at least 2 days.