Does anyone know how to convert a 8" cake tin sponge recipe to a 9" tin recipe?

[elibumbum]

Or failing that has anyone got a good sponge recipe for a 9" tin?

Multiply amounts by a factor of approximately 1.4 or 729/512 to be precise.

I don't think an inch will make much difference!

[dirtygrin emoticon]

Thanks boogie woogie!
isn

What about the egg?

just use large eggs?

Depends on the number of eggs. Think I'd multiply by 1.4 then add an extra one if it looked like it was indicating that, and not bother if it wasn't making much difference - ie, round up or down, if that makes sense?

Thanks everyone

I made an 8" recipe in a 9" square tin yesterday and it was ok. A little bit thin but not so you'd really notice once it was iced & sliced.

I think that there is a convertor on Delia's site?

I have no idea how big any of my tins are. I just use them regardless. haven't had any disasters

Thanks. I wouldn't normally fret about the odd inch but the cake is for DS's first birthday!