To make these Homemade Lemon Scones gluten-free, substitute the all-purpose flour with a 1:1 gluten-free flour blend that includes xanthan gum. Ensure all other ingredients, particularly the baking powder and powdered sugar, are certified gluten-free. The dough may be slightly more delicate, so handle gently when shaping and cutting. The flavor and texture will remain delightfully similar — buttery, lemony, and tender.