LOL Sue, That paticular cake was 2 cake recipes, but we were having lots of family come and we had to have enough cake. I just made both the chocolate cake and the yellow (vanilla, white, whichever) for the other 2 birthdays this month and only made one recipe. I just used smaller rounds. The best thing I have found when I altered these recipes to be gluten free was that they have to stay thin to bake all the way through. So I only put an inch or so in any of my shaped pans and just bake the shapes until all the batter is gone. =) It works well for us since I have all my cake decorating pans and shapes from days long gone by and I have duplicate sized pans.
We can’t use most mixes because they have yeast in them. That seriously limits what things you buy off the shelf.