To make these cookies gluten-free. Substitute the all-purpose flour. With a gluten-free flour blend. That includes xanthan gum for binding. Ensure your oats are certified gluten-free as well. The texture and taste might slightly vary. But the cookies will still be delicious. Additionally, check that all other ingredients. Like chocolate chips. And toffee bits. Are gluten-free. This way, everyone can enjoy. These delightful cookies. Without worrying about gluten.