Grease a tart mould with lifting base (11 x 35 cm; alternatively round, 24 cm Ø). Heat 100 g butter and peanut cream slightly while stirring. Pour the flakes into a freezer bag and crumble them roughly.
Mix with the peanut butter. Press into the mould to form a base, forming a small rim. Chill for about 1 hour.
Soak gelatine in cold water. Mix cream cheese, lemon juice, sugar and approx. 1⁄3 cream. Squeeze the gelatine and dissolve at very low heat. First stir 2 tablespoons of cream cheese cream into the gelatine, then stir the gelatine mixture into the rest of the cream cheese cream.
Whip the rest of the cream until stiff and fold into the cream. Spread loosely on the flakes base.
Warm the jelly. Wash the berries, remove the panicles with a fork and mix into the jelly. Place the jelly berries in patches on the cream cheese and whisk gently with a fork. Chill for at least 4 hours.
Carefully remove the cake from the tin and cut it into pieces.