Peel the mango, cut the flesh off the stone and chop it coarsely. Puree mango and fruit juice. Halve the passion fruit. Spoon out the inside and stir into the mango puree.
Mix mascarpone, quark, vanilla sugar, lemon peel and lemon juice. Sweeten with sugar to taste. Whip cream until stiff and fold in.
Coarsely crumble the Amarettini and put them in a bowl. Spread mascarpone cream on top and drizzle some mango puree over it. Dust with cocoa or cinnamon. Add the rest of the sauce extra.