4 hours before, cream cheese, egg yolk, 125 g sugar and vanilla sugar until creamy. Whip cream until stiff and fold into the mixture. Line the hollows of a muffin tray (12 hollows) with baking cups and fill them to approx. 3⁄4 with the mixture. Freeze for about 1 hour.
For the topping, wash, stone and coarsely mash the cherries. Stir into the rest of the mixture in streaks. Freeze for about 1 hour. Stir briefly after about 30 minutes.
For the sauce, mix 3 tablespoons of nectar and starch. Bring the rest of the nectar and 2 tablespoons of sugar to the boil, thicken with the starch. Let cool off. Put it in a cold place.
For the topping, remove half-frozen cherry mixture piece by piece with a spoon and place on the muffins. Freeze for at least another 3 hours. Serve with sauce.