Anyone know about sheet cakes? I hate doing them but a customer wants a sheet cake for 40 people. What size pan do I use? I'm using a box mix, so I figured I'd use 2 boxes. Will a 9x13 work? Is there a sheet pan that will only hold 1 box of mix so I can make 2 and use a filling?
I would suggest using a 12X18 pan. I get 50 servings out of that. I usually end up putting 2 1/2 of the boxed mixes in it to make it a nice tall cake. You could torte that if you need to. I have honestly never gotten 40 servings out of a 9X13. Have a wonderful day, Kathy
Here is a post I saved and refer to often... Indydebi has a post laying out the size/servings of different sheet cakes. HTH 
http://forum.cakecentral.com/cake-decorating-ftopict-302303-.html
I'd use the 12 x 18 and a recipe of WASC (whatever flavor) will fill that pan just fine, nice high cake (especially the actual WASC).
I use a 12x18 for cakes with that many servings. A 9x13 would be too small I think. When I use a box mix, I use the WASC which is I think 1 1/2 times the mix, so you would use 2 of that recipe to make 3 times the batter, does that make sense? If you want it to be tall enough, and just use plain box mix, I think I would go for 2 1/2 or 3 mixes, but I don't know because I never use just plain box mix. HTH.
Ashley
I looked at Wilton's serving guide and it says a 9x13 will feed 45 (Party) and 50 (wedding). So I guess it just really depends on how big you are planning to cut the slices.
Since you are planning to make two layers with a filling, you could probably cut the slices small.
It would have to be two 9 x 13 stacked to feed anywhere close to 50.
It would have to be two 9 x 13 stacked to feed anywhere close to 50.
Thanks for the advice. I want the cake to be somewhat tall, so I think I'm going to go for the 11x15 or 2 9x13's.
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