Mascarpone and Grape Dessert

Crush the Amaretti finely, keeping 4 whole cookies aside, and set 1 tbsp of the crumbs aside for later decoration.

Wash the grapes, remove them from the stems and halve them.

Whip the egg white until stiff, gradually adding 1 tbsp of sugar.

In a bowl, beat together mascarpone, low-fat quark, milk, sugar, vanilla sugar, and lemon zest until creamy.

Gently fold the beaten egg white into the mascarpone mixture until just combined.

Layer the mascarpone cream, Amaretti crumbs (not including the tablespoon set aside), and grapes alternately in 4 dessert glasses.

Sprinkle with the reserved tablespoon of Amaretti crumbs and, if desired, garnish with the 4 whole Amaretti.