When my sister-in-law gave me a copy of The Cake Mix Doctor as a gift, I initially turned my nose up. I do all my own baking, from scratch. I bake all my own bread. I still make my own 7-minute frosting in a double boiler. I make my own tortillas. What in the world would make a boxed cake mix suddenly appear in my shopping cart? In fairness, though, I flipped through the pages to see what looked good. My gracious. The gorgeous color pictures in the very front of the book showed me that everything in the book looked good. So I gave it a try, and took a couple of the cakes to church suppers and...