Soak the gelatine in cold water. Drain the cherries, collect the juice. Stir 5 tbsp. juice and pudding powder until smooth. Boil up the rest of the juice and vanilla sugar. Bind with mixed pudding powder. Stir in the cherries. Let the compote cool down
Mix yoghurt, crème fraîche and 2-3 tablespoons of sugar until smooth. Squeeze out the gelatine and dissolve over a mild heat. First stir in 3-4 tbsp yoghurt, then stir everything into the remaining yoghurt. Cool until it begins to gel. Layer yoghurt and cherries in 4 glasses and chill for at least 2 hours
Meanwhile roast oat flakes without fat. Sprinkle the rest of the sugar on top and caramelise until golden yellow. Spread on baking paper and let it cool down. Crumble
Decorate cherry cup with crunchy flakes, lemon balm and icing sugar