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Hi
I am struggling to change up Mrs Jones carrot cake recipe to a 10inch square 4inch deep tin.
I wanted to use http://www.cakebaker.co.uk/apps-for-bakers/baking-tin-size-conversion-calculator/ to change it up however I dont think Mrs Jones specifies the depth of her tin. Does anybody know what depth the tin was?

I have estimated that its a 8inch by 3inch deep round??

Which when I use cake o meter becomes.

soft brown sugar 862.1 gram
Vegetable oil 862.1 gram
self raising flour 1286.5 gram
EGGS 10.6 each
Mixed spice 39.8 gram
Carrots 1817.0 gram
pecans 397.9 gram
bi carb soda 2.0 teaspoon

Hi lorie

It appears Mrs Jones has used sandwich tins. If you go back to the tutorial there is a note below the video which says to achieve a deep cake each round should be 1.5″ high. As far as I can see your guesstimate would be right, you’d need to make the conversion from 8″ round 3″ deep to your required size. However there will have to be an adjustment for time and temperature because your 10″ square has far more volume and will require to be baked on a lower temperature for longer. If I was doing this in a conventional oven I’d bake at 150c and check the cake after 2 hrs then continue baking if it needs it. to finish. In a fan oven the temp would need to be reduced by approx 20 degrees for the same time or perhaps a fraction less. All ovens work differently, you would need to know how your own oven behaves or check in the manufactures handbook for temperature adjustments. I keep an eye and nose on all new conversions and new recipes which I haven’t baked before. I would recommend double lining the corners as these are vlunerable to burning.
If the cake is intended as a stacked tier Mrs Jones recommends increasing the flour by an additionl
25% to strengthen the structure. Hope this helps.