Melt the butter with the chocolate and then add the flour, sugar and 2 eggs and the nuts and mix everything well. Put the dough in a springform pan and bake at 160° for about 25 minutes, then take it out and spread with half of the strawberry jam.
Thoroughly mix the curd with cream cheese, powdered sugar, custard powder, condensed milk and 2 eggs, spread the mixture on the cake and bake the cake for another 50-55 minutes. Turn off the oven, brush the cake with the remaining jam and put it back in the oven for another 10 minutes or so.
Then take it out and let it cool.