Defrost berries in a bowl at room temperature for about 20 minutes. Mix with raspberry brandy and vanillin sugar, defrost and allow to soak. Divide up to 1 tablespoon into four glasses. Wash the lemon, dab dry, grate the peel and squeeze half of the lemon. Stir the quark, lemon juice and zest and sugar until smooth.
Whip cream until stiff and fold in. Spread on the berries. Sprinkle with smacks and remaining berries just before serving. Garnish with lemon balm
Preparation time 15-20 minutes (without waiting time)