Step 1
Preheat oven to 350°F. Spray mini muffin tins well with non-stick spray or line with mini paper liner cups.
Step 2
In a medium bowl, whisk together flour, baking powder, baking soda, salt, and ground cinnamon. Set aside.
Step 3
Mash bananas until smooth.
Step 4
In separate bowl, beat sugar and oil together until blended. Add eggs, sour cream, mashed bananas, and vanilla. Beat on medium speed 1 minute until smooth.
Step 5
Stir in flour mixture and beat until blended.
Step 6
Fill muffin cups almost to the top. Sprinkle Turbinado sugar on top.
Step 7
Bake 15 minutes or until toothpick inserted into center is dry. Do not over bake.
An easy way to fill the muffin cups with batter is by using a pastry bag. Fill the bag with batter and squeeze into the pan.