New cake tin .... very simple question

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New cake tin - reads 9 1/2 x 3inch external AND 8 3/4 x 3 inch internal.

I want to make a chocolate cake (first time for everything) - is it a 9 inch tin OR an 8 inch tin?

I've bought a springform cake tin, does anyone have a recipe for this size of tin? Thank you.

My vote goes for 'nine'.

I'll go with that then as thats what I'm thinking....now I just need to find a recipe.....any tried and tested recipes...??

I second nine.

it's a 9" tin.

What sort of cake are you after?

I'm after a chocolate cake - I've only got one tin but its 3 inch deep so hoping to make one cake and then slice it. Also need the recipe for a filling (buttercream if easy?) and icing to cover.

I've got my Mum here today so want to do it whilst she is around (even though she just throws everything in and hopes for the best). We tried this method with banana bread last week and it worked well, maybe that was beginner's luck.

All cakes seem to be for an 8 inch tin....I might exchange unless one of you have a good link....thank you.

9" tin needs approx 1 1/4 times a recipe for 8" cake

(so 4 eggs for 8" = 5 for 9", or, close enough 3 eggs for 8" = 4 for 9")

For every egg, its weight in plain choc, castor sugar, butter, plain flour+1tsp baking powder.

Make as 'normal', but with separating eggs, whisking whites and folding in at the end.

For an icing, melt 150g of plain choc with 65g butter (might need double) and
either pour over cake or
allow to cool a little and then whisk with a balloon whisk until sort of milk choc coloured, then trowel it on spread over with a palette knife

hth