Though blueberry season is over, these muffins (thank you for posting this recipe, Kari!) can be made with frozen blueberries (that's what I used) and will still be the most delicious blueberry muffins. They do take a little more work than a standard blueberry muffin but they are worth it. Just that sugary coating on top, yum! The batch lasted about 18 hours at our house.
