What is the height of an average sheet cake?? I made one this weekend. I took 2 1/2 sheet pans and filled them with one box of cake mix. I thought the cake could be a little higher? What does anyone reccommend? I didn't want the cake to spill over so I only used the one box. Let me know what you all think.

what size are the pans??? I used two mixes for a 12" x 18" x 2" pan and it was perfect.......not too much of a dome on top (because of my flower nail) and then what cake there was sticking up...I put my cooling rack on top and pushed it down for a min. and it made the whole thing perfectly level. The two mixes were perfect!!!!

I think they are 12x18 pans. 2 boxes insn't too much? It won't bake over the edge?? That is good to know, I will have to try it, and with the nail too.

In my 12*18*2 pans I use 3 cake mixes and they are nice and tall and do not bake over the edges at all.

Cakes should be 2 inches high baked. To get this you should fill the pans 2/3 rds full. A 12 x 18 pan holds 3 mixes and 1 extender. a 1/2 sheet or 12x16 holds 2 cake mixes and 1 extender.

mine didn't bake over the edge at all!! I used two mixes because I wanted two separate flavors in the cake and didn't want to mess around with covering a separation line by joining two separate cakes together.......yes the nail works beautifully......I just nestled it down in the batter after the pan was full! It took only 40 min. to bake and came out perfectlly. Good Luck

I don't know the average height of those, but I do know that mine are always alot thicker then the ones I see in the store bakeries! I have the 12x18 also and I use 3 boxes in that one, it's never baked over the edge. I do have to level it a little more then KHalstead said she has to, but it's never baked over, and it comes out a nice size.

Great!! Thanks everyone... I will try it out.. I definalty thought mine was too short. Now I know.

Ok, this is embarrasing, but I have to know lol ceculsk, what's an extender for that? I haven't been at this stuff very long, still alot I have to learn I guess

It is a extender recipe that gives you a little more batter when you do not need a full mix. Usually 1 cup flour, 1 cup sugar, 1 egg, 1 cup sour cream/yogurt/milk/etc, 1 teaspoon vanilla or other flavor. You add this to your cake mix or other mix.

I generally use 2 box mixes for a 9X13, and 3 box mixes for a 11X15. It raises just a little over the pan but not too much (no spill over) but enough for me to get a nice level cut all the way across and it gives me a full 2 inches of height.

Ohhh, OK, that makes sense!! Now I really feel like an idiot LOL! Thanks for the info

so when you add the 2 or 3 boxes in the 12x18 pan. You only bake one pan or 2?

Just one pan is all you need. Unless your goal is something even thicker

I use 2 cake mixes for an 11x15" and 3 cake mixes for the 12x18". Works perfect every time. This is for the 2" depth pans.

Bodaisy,
I too want to bake a 12x18 and want to use the extender recipe. Would I use 2 boxes or 3 if I want a full but dense cake? Please advise.

Thanks for the great advice, I will do that for my Easter cake.

I use 1 1/2 cake mixes per 12x18.
Also wrapped with damp towel strips so that you don't have to wrry about that dome. Usually takes close to an hour on 350 to bake.