I am making a practice wedding cake today for my daughter. The cake recipe is on food.com and is the wasc wedding cake. It calls for 2 boxes of 18oz cake mix. Well the boxes only come in 15oz and something now. My question is, I bought 3 boxes, can I just measure this cake mix on my scale to get a total of 36oz? for 2 18oz boxes? I am horrible at math so I can't calculate the rest of the recipe to a 15oz box...lol.
I am going to fill a 10" round pan, I am sure I will have some left over. Is it ok to sit out while I bake my 10" first? or should I put it in the fridge? Sometimes I have noticed box cakes change a little if they sit out to long. I would put two pans together but I don't want to interupt the 10" baking just to take out a smaller pan. ?
Thanks! I have already make the strawberry filling and it is good!!