Defrost blueberries at room temperature. Roast almonds in a pan without fat for about 5 minutes, turning constantly. Melt butter in a pan. Coarsely dice biscuits and almonds and mix well with the butter. Spread the bottom of a springform pan (20 cm Ø) with oil. Spread the breadcrumb mixture evenly and press it on
Soak gelatine in cold water. Wash lemon hot, grate dry and grate peel thinly. Halve the fruit and squeeze the juice. Whip cream until stiff and chill. Mix cream cheese, yoghurt, 150 g sugar, vanillin sugar and 3 tbsp lemon juice. Squeeze 5 sheets of gelatine, dissolve and mix with 1-2 tbsp. cream cheese cream. Then stir into the remaining cream and fold in the cream. Spread the mixture into the springform pan on the cake base and chill
Finely purée the blueberries and 2 tablespoons of sugar with a hand blender. Squeeze out 1 sheet of gelatine, dissolve and mix with 1 tbsp. blueberry puree. Then stir into the remaining blueberries. Spread the mixture on the cream cheese and smooth it down. Put the cake in a cool place for at least 3-4 hours.
waiting time approx. 3 hours