Transforming these Peanut Butter Blossom Bars into a gluten-free delight is not just possible, it's wonderfully easy! Swap the all-purpose flour with your favorite gluten-free flour blend. Look for a 1:1 substitute to keep measurements simple. A good blend typically combines rice flour, potato starch, and xanthan gum, ensuring your bars still have that irresistible chewy texture.