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Help me adjust this recipe for an awesome birthday cake

(7 Posts)
Christmaspanic24 Sun 03-Feb-19 13:45:13

Hi,

I want to make a delicious choc cake for my son's 3rd birthday. I've found this recipe

https://www.bbcgoodfood.com/recipes/3092/ultimate-chocolate-cake

But I want to make it bigger, maybe a 30cm tin instead of 20cm. How would I adjust the mixture amount and cook time?

Thanks!

picklemepopcorn Sun 03-Feb-19 14:03:43

Work out the volume. Measure how much water fills the 20cm tin, then how much fills the 30cm. It's probably a bit more than double.

When you cook it, cover the edges with foil and leave it in quite a lot longer.

Christmaspanic24 Sun 03-Feb-19 14:14:39

Thanks pickleme I'm a total novice, so excuse the stupid questions, do I just cover the edges with foil instead of the whole top? How much of the edges? I'm assuming then that the temp remains the same? Thanks xx

Christmaspanic24 Sun 03-Feb-19 14:16:29

Sorry about kisses, just so automatic blush!

picklemepopcorn Sun 03-Feb-19 14:18:40

I'll let you off the kisses!

Same temperature.

Make a foil collar for your tin, and bend the top over slightly. That will stop the edges getting dry before the middle cooks.

Does that make sense?

Christmaspanic24 Sun 03-Feb-19 20:46:50

Yes! Amazing, thank you.

picklemepopcorn Sun 03-Feb-19 20:53:04

When are you making it?

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