Soak gelatine in cold water. Select the raspberries, mix with sugar syrup and raspberry brandy and pour into transparent disposable cups. Squeeze out the gelatine, dissolve lukewarm. First stir 100 ml Prosecco into the hot gelatine, then stir the mixed gelatine into the rest of the Prosecco. Pour into the cups with the raspberry-syrup mixture and chill until the jelly is firm. For the cream, stir mascarpone, quark, sugar and lemon juice until creamy. Spread over the jelly