The reason for making this cake began with a Desperate Housewives episode. My mother saw Bree’s gorgeous Upside Down Cake and said, “Mmmm… I want some. Why haven’t you made this cake?” I shrugged, and then I made it. And it wasn’t easy, mind you. I followed a recipe that called for making a thick caramel syrup base and for some reason, my sugar and butter just wouldn’t mix together and turn into a liquid caramel. The butter and sugar kept separating, and in one instance, I managed to make caramel candy crystals, which was lovely if only that was what I had been trying to do in the first…