⅔cupchocolate chipsoptional: plus a little extra for topping
Optional: Flaky sea salt for topping
Instructions
Preheat your oven to 350°F. Line a baking sheet with parchment and set aside.
To brown the butter: Melt the butter in a saucepan or small pot over medium-low heat while stirring constantly to ensure the butter does not burn. After about 5-10 minutes the butter will begin to foam. Continue stirring until the butter smells nutty and turns a golden amber color with browned bits forming. Immediately remove from the heat and pour into a heat-proof dish to cool. Let it cool for 10-15 minutes (until it is lukewarm or room temp).
While the butter is cooling, mash your banana and make sure it measures ¼ cup.
In a separate mixing bowl, whisk the flour, baking soda, cinnamon, and salt until blended.
Add both of the sugars to the brown butter and whisk together until combined. Add the mashed banana, egg yolk, and vanilla, and whisk until smooth and well combined.
Add the flour mixture into the wet mixture, and gently stir until well combined being careful not to overmix. Fold in the chocolate chips until evenly incorporated.
Using a medium scoop (I used a #40 scoop equal to 1.5 TBSP), scoop the dough onto prepared cookie sheets about 3 inches apart.
Top each ball of dough with a few extra chocolate chips. Bake the cookies in the pre-heated oven for about 10-12 minutes until the centers look slightly underbaked, and the edges are golden.
Remove from oven, and allow cookies to cool on the sheets for at least 10 minutes before transferring to a wire rack. Top with sea salt, if desired. Serve & enjoy!
Notes
Store cookies in an airtight container at room temperature for up to 4 days. For longer storage, freeze cookies in a single layer on a sheet pan until firm, then transfer to a freezer bag or container. Freeze for up to 3 months.