Drain the cherries while collecting the juice in a saucepan. Add vanilla sugar and bring to the boil. Stir starch and 2 tablespoons of water until smooth. Stir into the boiling juice, bring to the boil again and simmer for 2-3 minutes.
Remove from heat, fold in the cherries. Keep compote warm or let it cool down as desired.
Chop macaroons coarsely and chocolate finely. Mix mascarpone, yoghurt and sugar with the whisk of the mixer for a short time. Fold in macaroons and chocolate. Serve the coconut cream with cherries.