Stir the fat until foamy. Stir in sugar. Beat in the eggs bit by bit. Mix flour and baking powder. Stir in the sour cream by the spoonful and work into a smooth dough.
Grease the fat pan of the oven and spread the dough on it. Bake in the preheated oven (electric oven: 225 ° C/ gas: level 4) for about 20 minutes. Melt the butter for the topping. Add sugar and cream and let it boil up once while stirring.
Fold in flaked almonds and simmer for about 3 minutes. Spread the almond butter mixture over the cake and bake for another 5-10 minutes at the same temperature. Makes about 20 pieces.