This is a great recipe that has served me very well for many years. It is adapted from Cook’s Illustrated and comes together very quickly and can be prepared and baked in about 40 minutes. I like to use frozen wild blueberries when fresh blueberries are not at peak, but otherwise, I opt for fresh. The bananas on the top are optional, but add a nice hint of fruit flavor. What a great smell to fill a kitchen any morning of the week!
Click here for the recipe.
Maroscooking 
These were delicious and everyone loved them! Question: when do you put the sugar on top? After you pour them in the muffin tray, right? You are inspiring me every day!
I am so glad you enjoyed!!! I love them too! Yes, sprinkle sugar on just before baking or even halfway through.