I'm making my nephews birthday cake and am making it out of sponge cake. I want to add a nice filling to the cake but am unsure on the flavors. My sister in law say's hes allergic to all berries and she doesnt think he will like lemon curd. I suggested a peach filling but am not positive.
How about a cheesecake or maybe a white chocolate. You did not mention him having a problem with choclate. If he likes fruit you could do a nice Pineapple or Key Lime for something different.
What about orange?