Melt the butter. Put the butter biscuits in a freezer bag and crumble them finely with a cake roll. Add crumbs to the butter and press them onto the bottom of a springform pan (26 cm Ø). Refrigerate the base for about 30 minutes. Soak gelatine in water. Mix yoghurt and diabetic sweetener. Sort and clean the raspberries.
Puree 150 g raspberries, pass through a sieve and stir into the yoghurt. Squeeze out the gelatine, dissolve and mix with 4 tablespoons of cream, then stir into the rest of the cream. Whip the cream until stiff. First add 150 g raspberries and then the cream to the yoghurt cream. Fill the cream into the springform pan and smooth it down. Chill the cake for at least 2 hours. Cut the cake into pieces and decorate with 100 g raspberries and mint
2 hours waiting time / 2 BE