Put the morello cherries in a saucepan with the juice from the glass, stir in the icing powder and cinnamon. If you want, you can add a little more sugar here. Heat the whole thing and let it thicken. Put the mixture in the mold to cool down (I always use my typical tiramisu shape).
Mix the remaining ingredients (quark, mascarpone, vanilla, sugar, orange juice) well in a bowl. If the mass is too thick, you can help with a little milk - but be careful, because the mass will not become any more solid later when it is cooled.
Pour the mascarpone quark cream onto the cooled cherry mixture and smooth it out. Chop up the amarettini (I put them in a freezer bag and work them with my rolling pin) and crumble on top as the top layer. Does not have to stand in a cool place and does not have to be steeped, can be served immediately.