Step 1

Preheat the oven to 350 F.

Step 2

Whisk together the flour, 1 cup of the oats, baking powder, baking soda, salt, and cinnamon in a small bowl and set aside.

Step 3

In a large bowl, add the brown sugar, eggs, mashed bananas, butter or oil, and vanilla and whisk or beat with an electric or stand mixer until fully combined.

Step 4

Add the flour mixture to the egg mixture 1/2 cup at a time, beating continuously, until smooth, then stir in the milk and chocolate chips.

Step 5

Line 15 muffin tins with parchment baking cups and fill 3/4 of the way with the muffin mixture, then top with the remaining 2 tablespoons of oats.

Step 6

Bake for 25 minutes at 350 F until a toothpick comes out clean.