Here's where my plan fell apart. The website I went to for advice said to follow the directions on the box for bake time. So, after putting the pie in the springform pan and pouring all of my cake batter over it, I baked my pakes for 30 minutes. I didn't check the center of the cake for doneness, because I was afraid I'd go too far with the pick, and mistake the pie filling for un-doneness, so I checked the side. The side was fine, but the center wasn't. In the end, if you don't mind licking the batter off of the spoon, my pakes weren't bad. Translation - the center of the cake part was not fully cooked. Lesson learned - I used enough cake batter for two cakes, so the bake time for one cake was not enough. Advice - bake cake for twice the amount of time (45-60 minutes). The pakes were still tasty, though.