Preheat the oven to 400°F. Line 2 baking sheets with parchment paper or silicone baking mats and set aside.
Whisk together the dry ingredients (flours, cornstarch, baking soda, baking powder, salt cinnamon, nutmeg) in a large bowl and set aside.
1 1/2 cups All Purpose Flour, 1 cup cake flour, 1 tsp. cornstarch, 1/2 tsp. baking powder, 1/2 tsp. baking soda, 1/2 tsp. salt, 1/2 tsp. cinnamon, 1/4 tsp. nutmeg
Cream together the butter, sugar and brown sugar using a stand mixer fitted with the paddle attachment, on medium speed until light and fluffy, ~3-4 minutes. 8 Tbsp. unsalted, cold butter, cut into cubes, 1/2 cup brown sugar, packed (light or dark), 1/4 cup sugar
Add in mashed bananas, followed by the egg, egg yolk and vanilla until combined.
1 large egg, 1 large egg yolk, 2 over ripe bananas, mashed (about 3/4 cup), 1 tsp. vanilla extract
Add in dry ingredients, gradually until ingredients are incorporated.
Add in chocolate chips until combined.
1 3/4 cup chocolate chips
Using floured hands and a cookie scoop, measure out ~10-12 cookies. The dough will be a bit sticky due to the bananas. The flour will help!
Place on prepared baking sheet & bake cookies for ~13-14 minutes.
Let cookies cool, then make the cream cheese frosting. Mix together the softened cream cheese and butter using a hand mixer. Then add in the powdered sugar, vanilla and salt. Mix until smooth. Add more powdered sugar as desired.
4 oz. cream cheese, softened, 4 Tbsp. unsalted butter, softened, 1 cup powdered sugar, sifted, 3/4 tsp. vanilla extract, pinch of salt
Frost cooled cookies, garnished with nuts and ground cinnamon if desired. Enjoy!
chopped walnuts and ground cinnamon for garnish, optional