Defrost the blackberries. Spread a springform pan (26 cm Ø) thinly with oil. For the base, finely chop almonds, dates, grated coconut and cocoa in a universal chopper. Pour into the mould and press down to a smooth base. Place in a cold place.
Soak gelatine in cold water. Mix cream cheese with sugar, vanilla sugar and lemon peel. Finely puree the blackberries with a hand blender. Weigh 200 g cream cheese cream and mix with the blackberry puree. Whip the cream until stiff.
Squeeze out 7 leaves of gelatine. Dissolve carefully in a small pot at low heat. Stir in 2 tbsp. blackberry cream, then stir into the remaining blackberry cream. 1⁄3 Fold in the cream. Squeeze out the rest of the gelatine and dissolve in the same way. Stir in 3 tbsp. white cream cheese cream, then stir into the remaining white cream. Fold in the rest of the cream.
Place creams alternately in the mould (see tip) and chill for at least 3 hours. Then carefully remove the cake from the mould. Chop the bark chocolate or crumble a little smaller. Decorate the cake with chocolate and possibly with blackberries.