EDIT: The banana bread flavors are the way to go. Nuts add a wonderful texture to all flavors. The berries were a little too tart. The cranberry was good but should have added cinnamon and the blueberries were great! This is a great base for an easy snack or breakfast!
I had a lot of fun with these and toppings! I read in the comments of the recipe that they were dense, so I baked with baking cups so they wouldn't crumble when I pulled them out. I had blueberry and almonds, cranberry and hazelnuts, frozen mixed berries, and cinnamon, ginger, and nutmeg with walnuts to create a banana bread flavor. I hope they are as good as I want them to be! Also, I really liked the idea of adding the crumbles to yogurt! I'll edit when I taste them!