Wash, halve and stone the fresh plums (drain the plums from the jar and collect the juice)
Mix 4 tablespoons cherry or plum juice and starch. Bring the rest of the juice, sugar, lemon peel, cinnamon stick and fresh plums to the boil (add the fruit from the jar only after it has thickened) and simmer covered for about 5 minutes. Stir in starch, bring to the boil again. Remove lemon zest and cinnamon. Let the compote cool down
Roast the almonds in a pan without fat. Whip cream and 1 sachet of vanilla sugar until stiff. Coarsely crumble the biscuits
Layer compote, cream and sponge crumbs in 4 dessert glasses. Decorate the layered dish with the roasted almonds