To make these Banana Chocolate Chip Bars gluten-free. Replace the all-purpose flour. With a gluten-free flour blend. That measures cup-for-cup. Brands like Bob's Red Mill or King Arthur. Offer great alternatives. That provides a similar texture. And taste. Ensure the gluten-free flour contains xanthan gum. Or a similar binding agent. As this will help maintain the bars' texture. Double-check that your baking powder is gluten-free as well. As some brands might contain traces of gluten. Enjoy these delicious bars. With the same great taste. Now suitable for those with gluten sensitivities!