Step 1

Preheat the oven to 350 degrees. Line baking sheet with parchment paper.

Step 2

In a medium bowl, whisk together flour, oats, baking powder, baking soda, salt and cinnamon.

Step 3

In a large bowl, cream together the butter and the sugars. I used an old-fashioned egg-beater but if you’re lucky enough to have an electric mixer, cream the butter and sugar on medium speed.

Step 4

Add the egg, followed by the mashed banana and vanilla extract.

Step 5

Working by hand, stir in the flour mixture and the oats until just combined.

Step 6

Stir in the chocolate chips.

Step 7

Drop heaping spoonfuls onto baking sheets, flattening each cookie slightly. Bake for about 10-12 minutes, or until cookies become light brown at the edges. Do not overbake these cookies!

Step 8

Let cool on baking sheet for 3 or 4 minutes, then transfer to a wire rack to cool completely.