Please don’t scream about this question, but I can’t find the answer (probably how I’m wording it). I’ve made quite a few of Rose’s cakes from her new book but several of them are just a 1 layer cake and I never make just 1 layer. If I want to just double the recipe to get a 2/9 inch layer cake, do I have to do the whole Rose factor thing. I tried to figure it out but I just can’t do it just to make one more layer. I always make it harder than it is I’m sure.