Soak gelatine in cold water. Bring apple juice, white wine and 1 teaspoon of lemon juice to the boil, allow to cool slightly. Squeeze the gelatine and stir in. Let the apple jelly cool down briefly and spread lukewarm over 4 dessert glasses. Chill for about 2 hours.
Rinse mint. Pluck off leaves, shake dry and cut into fine strips. Wash apple, remove seeds, dice finely and marinate with mint, 1/2 sachet vanilla sugar and 2 tablespoons lemon juice. Mix mascarpone with cream and 1 sachet of vanilla sugar until smooth. Layer mascarpone cream and apple tartar on the cooled apple jelly