Cream soft fat, sugar, vanillin sugar, lemon peel and salt. Stir in the eggs bit by bit. Mix flour, baking powder and almonds, stir in alternately with brandy. Grease the fat pan of the oven well, add the dough and smooth it down. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 25-30 minutes. Let them cool down. Stir sour cream with milk until smooth.
Add sauce powder and mix well with the whisk of the hand mixer. Whip cream until stiff and fold into the cream. Spread on the base. Select the raspberries and blackberries. Cover the cake with the raspberries and blackberries. Keep cool until serving. Before serving, dust with icing sugar and decorate with lemon balm if desired