I would say that a 2 layer 9x13 would still feed about 20-25--I can't imagine getting more than that. It would be different if you had two 9x13 layers sitting next to each other---then your estimate would be about right. But just because the cake is twice as tall, doesn't mean they'll cut the pieces half the size. That would be a 1x1 piece!
ladyonzlake
Posted 1 Apr 2007 , 1:34am
post #35 of 35
I use the Wilton serving sizes for the 2 layer cakes. 9x13 feeeds 45, 11x15 feeds 60, 12x18 feeds 72
Jacqui
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