Mix the butter with the crumbled biscuits and knead into a dough. Press the dough into a buttered springform pan so that an edge is around 2-3 cm high.
Filling:
Mix the condensed milk with the cream well. Then add the lemon juice and lemon zest. A creamy mass is created with constant stirring. Put these on the cookie dough in the mold.
The cake must rest in the refrigerator overnight.
Variations:
Mango or peach wedges can be placed on the hardened cake. Fruits can also be lifted under the filling.