scaling up cake recipe - 9" square cake - UPDATE with pictures

Hi Jill

Most basic sponge recipes are round, which doesn't matter as long as you know how to match cake tin sizes.

A 7 inch round tin is the same as a 6 inch square tin (and so on). So, for a 9" square tin, you need the quantities for a 10 inch round mixture. Now, that's pretty big - probably too big - for standard sponge recipes. These are usually for 7" round (6 square) or 8" round (7 inch square). Because of the way sponges cook, you can't just increase the quantities and hope for the best.

For your sized tin, you could make a fruit cake (which happily doubles, trebles, quadruples mix sizes), or a madeira cake.

For your 9 in square madeira you will need
250g Plain flour
250g self raising
450g unsalted softened butter or soft margarine
450g caster sugar
8 size 3 eggs (this is about 7 large eggs)
60ml milk (in place of water in previous posters recipe)
flavourings as required (vanilla essence, orange rind, lemon rind)

You can follow the instructions in the previous posters info.
Cooking time is 1.75 to 2 hours


Note that the tin should be quite deep.

If you want to make very quick and easy sponge cakes, like a delicious all in one sponge which is very quick to make, then it would be worth while investing in a pair of 7 inch round tins - for verstility, make sure its at least an inch deep.

Here's the recipe - you'll see why it might be worth the tin investment:
4oz SR flour, 1tsp baking powder, 4 oz soft margarine at room temp, 4 oz caster sugar, 2 large eggs, 2-3 drops vanilla essence or extract.

Put everything in a bowl, whisk withy an electric whisk for about a minute util everything is blended.

Pour mixture into buttered (and preferabley base lined) tins. Level off, bake at Has 3 (170C) for 30 mins. Leave in tin for a minute before turning out. When cold, sandwich together with your choice of filling.

OMG Jill - that's BRILLIANT!!!!

I want one for my 30th!!!!!!

Well done you!!!! :T :T :T

WOW
Im pretty mean at cooking and baking...but havent got an artistic bone in my body....luckily my mum used to make wedding/celebration cakes... im soooooooo impressed.....what a result ....rounds of applause :-)
jill