To prepare a gluten-free version of this White Chocolate Macadamia Cookies Recipe, substitute the all-purpose flour with a 1:1 gluten-free baking blend that includes xanthan gum for structure and elasticity. Ensure all other ingredients—especially the baking powder and instant coffee—are certified gluten-free to prevent cross-contamination. The texture will remain soft and chewy, with the same buttery, nutty flavor profile.