Finely crumble the cake. Defrost raspberries at room temperature. Mix with lemon juice and 1 packet of vanillin sugar. Mix mascarpone, quark, milk, remaining vanillin sugar, sugar and cinnamon with the whisks of the hand mixer to a creamy mixture.
Divide 3/4 of the cake crumbs into four dessert glasses. Put about 8 raspberries aside for decoration. Spread the rest of the raspberries on the crumbs and add the cream. Decorate with the remaining raspberries and sprinkle with the crumbs