Take the ricotta and quark out of the refrigerator so that they reach room temperature. Finely crumble 300 Amarettini. Melt the butter and mix with the crumbs. Press the crumb mixture onto a deep, small baking tray ("plum cake tray"; 26 x 39 cm) to form a base. Put it in a cold place.
Drain the apricots, collecting the juice. Measure out 200 ml juice. Mix ricotta, low-fat curd cheese, sugar, 1 packet of vanillin sugar and juice. Immediately stir in gelatine. Smooth the ricotta mixture quickly on the crumb base. Spread apricot halves on top and chill for about 2 hours. Whip the cream until stiff, while pouring in 1 sachet of vanilla sugar. Pour into a piping bag with a star-shaped spout and squirt tuffs onto the cake. Place 20 g Amarettini on the tuffs.
Smooth the ricotta mixture quickly on the crumb base. Spread apricot halves on top and chill for about 2 hours. Whip the cream until stiff, while pouring in 1 sachet of vanilla sugar. Pour into a piping bag with a star-shaped spout and squirt tuffs onto the cake. Place 20 g Amarettini on the tuffs. Crumble 20 g Amarettini and sprinkle on the cake