8ouncessemisweet chocolate, coarsely chopped into 1/4-inch chunks
1/2cupcoarsely chopped walnuts, toasted
Instructions
Preheat oven to 375 F degrees. In a small bowl, whisk together flours, salt, and baking soda; set aside. In the bowl of a stand mixer fitted with the paddle attachment, cream butter and sugars on medium speed until pale and fluffy. Reduce speed to low and add egg and vanilla; mix until combined. Mix in banana. Add flour mixture; mix until just combined. Stir in oats, chocolate chunks, and walnuts.
Using a 1 1/2-inch ice cream scoop, drop dough onto baking sheets lined with parchment paper, spacing about 2 inches apart. Bake in preheated oven, rotating sheets halfway through, until golden brown and just set, 12 to 13 minutes. Let cool on baking sheets on wire rack for 5 minutes. Transfer cookies to wire racks to cool completely.