Drain the cherries, collecting the juice. Mix the starch with 4 tablespoons of juice until smooth. Bring the remaining juice to the boil with sugar, stir in the starch and let it boil. Let simmer for about 1 minute. Fold in the cherries and let the compote cool.
Coarsely crumble the biscuits. Beat the yogurt until smooth.
Put some yoghurt in 4 dessert glasses or a large glass bowl. Sprinkle the crumbled biscuits on top. Pour in the cherries, except for 1 tablespoon for decoration. Put the rest of the yogurt on top and decorate with the rest of the cherries.
Let it steep for a moment and serve.
During the Christmas season, dessert also tastes good with speculoos.