Cut marzipan into fine cubes. Put milk and whipped cream in a mixing cup rinsed with hot water. Add cream powder and whisk with the whisk of the hand mixer first for 1 minute on lowest setting, then for 3 minutes on highest setting. Fold in marzipan. Chill the mousse for at least 1 hour. Meanwhile, briefly bring the raspberries to the boil in a saucepan with 50 ml water and vanillin sugar, stirring continuously.
Pass through a sieve and chill. Roast the flaked almonds in a coated pan without fat until golden brown, remove. Use 2 damp teaspoons to cut 12 cams off the mousse. Arrange 3 mousse socks with raspberry sauce on 4 plates and sprinkle with almond flakes. Dust with icing sugar and decorate with lemon balm