We bought a large pack of fresh blueberries the other day. My daughter loves them plain, in pancakes, with yogurt, etc. I may end up freezing some in the next couple of days but I took the opportunity to make some blueberry muffins. I started with a recipe in Joy of Cooking, and combined the recipes for sour cream muffins with blueberry muffins since I had some extra sour cream. You can substitute plain yogurt or buttermilk for sour cream if you want. These came out really good, full of blueberries and with a nice tang. I think the cinnamon and sugar topping really added a lot.