Melt butter at low heat. Put the cookies in a plastic bag and close it. Crumble them finely with a rolling pin. 150 g cookie crumbs with the liquid butter
mix. Place a springform pan rim or cake ring (26 cm Ø) on a cake plate lightly coated with oil. Fill in the biscuit mixture as a base and press it down. Chill for about 1 hour
Soak gelatine in cold water. Mix cream cheese, soured milk and sugar with a hand mixer until the mixture is smooth. Only then stir in lemon juice. Squeeze the gelatine, dissolve at low heat. First stir in 3-4 tablespoons of cream, then stir into the rest of the cream. Chill for about 15 minutes until it starts to gel
Whip the cream until stiff. Fold into the cream cheese cream. Spread on the cake base. Chill for at least 5 hours. Remove the rim of the mould. Press the remaining biscuit crumbs onto the edge of the cake