These are my leftovers. Savoy sponge cake and marbled cake.
You can break them to crumble or as I am doing small cubes
In the microwave , melt butter and jam mix well then add the rhum and add the mix over the cake bits
And put in the mould. Here I used a 20x20 cm lined with parchment paper. Press them tight and refrigerate for 4 hrs or overnight
Slice and serve