Warm jelly with water and sugar. Do not boil or use more water, otherwise the cake will not set. Set aside and let cool.
Cut the strawberries into small pieces. Melt the butter. Crumble the sponge fingers, but not too fine. Mix the butter and breadcrumbs together. Press the bottom into a 26 cm springform pan or a corresponding cake ring.
Mix the cream cheese and yoghurt, stir in the jelly. Either stir in the strawberries or spread them on the floor. Spread the cream cheese mixture on the base. Put the cake in the refrigerator for about 6 hours or preferably overnight.
Of course, you can also make the cake with or without other fruits. You can also use other jellies. The floor can also be varied, e.g., with corn flakes and chocolate, pretzels.