Preheat your oven to 350°F (175°C). Prepare a 9x9-inch baking pan by spraying it with nonstick cooking spray or lining it with parchment paper for easy removal.In a large mixing bowl, combine the mashed bananas, eggs, coconut sugar, almond milk, applesauce, melted coconut oil, and vanilla extract. Stir until everything is well combined and the mixture is smooth.In a separate bowl, whisk together the gluten-free flour, baking powder, baking soda, and salt. This helps to evenly distribute the leavening agents and ensures your bars rise perfectly.Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to over-mix, as this can result in dense bars. Gently fold in the chopped walnuts, reserving 1 tablespoon for the topping.Pour the batter into the prepared baking pan, spreading it out evenly. Sprinkle the remaining tablespoon of chopped walnuts over the top for added crunch.Place the pan in the preheated oven and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. The bars should be golden brown and slightly firm to the touch.Allow the bars to cool in the pan for about 10 minutes before slicing them into squares. Serve warm, with a slice of butter if desired, for an extra indulgent treat.Enjoy 🤍