Ingredients 1 stick unsalted butter , room temperature (1/2 cup) 1 cup brown sugar , packed 1 large egg 3-4 very ripe bananas , mashed (frozen bananas are BEST; they're extra sweet) 1 teaspoon vanilla 2 cups all-purpose flour 1 teaspoon baking powder 1/2 teaspoon baking soda 1/4 teaspoon salt 1 cup dark chocolate chips Instructions 1. Preheat oven to 350 degrees F. 2. Line a 9x5 loaf pan with parchment paper, making sure the parchment is hanging over the sides of the loaf pan. This will help you easily remove the loaf after baking. Spray with nonstick spray and set aside. 3. In a large bowl, cream butter and sugar together for about 2 minutes until smooth. Whisk in the egg then add the mashed bananas and vanilla. Mix, sc down the sides of the bowl, until well combined. 4. Add the flour, baking soda, baking powder, and salt. Mix until well combined. Fold in the chocolate chips. 5. Pour the mixture into the loaf pan. Bake for 55-65 minutes until a knife inserted in the center of the loaf comes out clean. Let cool for at least 30 minutes before serving.