Soak gelatin. Mix the almond butter with the quark, yogurt, powdered sugar and lemon juice. Squeeze out the gelatine, dissolve over a mild heat. First stir in 1 tablespoon of the cream, then the rest. Whip the cream until stiff and fold under. 1/2 cream in a shallow bowl, speculoos on top, remaining cream on top and chill.
During the day:
For the grits, bring the juice and syrup to a boil in a saucepan. Add the mixed starch and bring to the boil. Let the raspberries steep in it for a moment.
Cut off the mousse and serve on plates with raspberry groats.