To make this recipe gluten-free, replace the all-purpose flour with a gluten-free 1:1 baking flour blend.
Use certified gluten-free cornmeal, as some cornmeal may be processed in facilities that handle wheat.
Confirm that the cornstarch, baking soda, baking powder, powdered sugar, flavorings, and honey are labeled gluten-free.
Use gluten-free vanilla flavoring and butter flavoring, as some flavor extracts may contain gluten-based additives.
Prepare the cookies on clean, gluten-free surfaces to avoid cross-contamination.