01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Melt 2 tablespoons butter in skillet over medium heat. Add sliced bananas and 2 tablespoons brown sugar. Cook, stirring occasionally, until bananas are golden and caramelized, about 4-5 minutes. Remove from heat, mash lightly, and allow to cool completely.
03 - In a large bowl, cream together 1/2 cup softened butter, 1/2 cup brown sugar, and 1/4 cup granulated sugar until light and fluffy.
04 - Beat in egg and vanilla extract until fully incorporated.
05 - Stir cooled caramelized bananas into the creamed mixture until evenly distributed.
06 - In separate bowl, whisk together gluten-free flour blend, baking soda, baking powder, and salt.
07 - Gradually add dry ingredients to wet mixture, mixing until just combined. Do not overmix.
08 - Gently fold chocolate chips into dough until evenly distributed.
09 - Drop tablespoon-sized scoops of dough onto prepared baking sheets, spacing at least 2 inches apart.
10 - Bake for 12-14 minutes, or until edges are golden brown and centers are just set.
11 - Let cookies cool on baking sheets for 5 minutes before transferring to wire rack to cool completely.