For the cake base, brush a cake plate with some oil. Place the rim of a small springform pan (18 cm Ø) on top. Roast the almonds in a pan without fat. Take them out and let them cool down.
Then chop roughly. Melt the butter. Put the rusk into a freezer bag, close the bag. Finely crumble the rusk with a rolling pin. Mix well with the melted butter and almonds.
Pour into the rim of the mould and press down as a cake base. Chill for about 30 minutes.
For the white cream, soak 3 sheets of gelatine in cold water. Mix 100 g sour cream, 100 g yoghurt and 2 tablespoons sugar. Squeeze the soaked gelatine and dissolve at low heat. Stir in 3 tablespoons of sour cream, then stir into the rest of the cream.
Whip 150 g cream until stiff. Fold into the sour cream. Spread on the cake base and chill for about 30 minutes.
For the pink cream, soak 3 sheets of gelatine. Wash and clean the strawberries. Puree 125 g strawberries with 2 tbsp. sugar. Mix 100 g sour cream, 50 g yoghurt and strawberry puree. Squeeze the soaked gelatine and dissolve.
Stir in 3 tablespoons of strawberry cream and then stir into the rest of the cream. Whip 100 g cream until stiff and fold into the cream. Spread into the mould. Chill for about 1 hour.
For the strawberry topping, soak 2 leaves of gelatine. Puree 150 g strawberries with 1 tbsp. sugar. Squeeze the soaked gelatine and dissolve. Stir in the strawberry puree by the spoonful and pour into the mould onto the strawberry cream.
Carefully place the rest of the strawberries inside. Chill for at least 3 hours. Remove the cake from the tin before serving.