Halve the vanilla pod lengthwise and scrape out the pulp. Mix mascarpone, quark, 3 tablespoons sugar and vanilla pulp with the whisk of the hand mixer until smooth. Clean, wash and chop the strawberries.
Wash the mint, dab dry and remove the leaves. Cut the leaves into fine strips and put aside about 1 teaspoon for decoration. Mix peppermint, 1 tablespoon sugar and strawberries. Mix milk and cocoa powder well.
Halve half of the sponge cakes, dip them in the cocoa and place 4 sponge halves on each glass base. Add 3-4 tablespoons vanilla cream, 2-3 tablespoons strawberry and mint salad and another 3-4 tablespoons cream. Halve the remaining sponge cakes, dip them in cocoa and place them on the cream.
Arrange the rest of the cream and strawberries on top. Sprinkle with remaining mint.