These are tender and delicate and bursting with blueberries in every bite. These are really miniature coffee cakes actually. They are bake in mini loaf pans you can find at most cooking supply stores. Wilton and Nordic Ware also sell mini-Bundt pans that would work (but result in fewer cakes overall) Either way, you get a tender, little blueberry muffin-cake that melts in your mouth.