After quite a few attempts, I've really got the hang of a Mary Berry Victoria sponge recipe. The cakes come out really lovely every time. Is there anything I can do with the basic recipe to get different flavor combinations to expand my repertoire? Up to now I've just done jam & fresh cream or lemon curd and fresh cream. Could I adapt the recipe to make a chocolate version? Anything else I can add to the batter for a different flavour. What other fillings are nice?