In brief
King Arthur Baking's Gluten-Free Cornbread combines cornmeal with a gluten-free flour blend and xanthan gum. Its texture therefore does not depend on corn alone.
Useful to know
King Arthur Baking's Gluten-Free Cornbread combines cornmeal with a gluten-free flour blend and xanthan gum. Its texture therefore does not depend on corn alone. [1]
Check every ingredient and its purpose when choosing a recipe. Replacing wheat flour with an arbitrary quantity of cornmeal is not equivalent to following a particular tested gluten-free formula.
Sources
For further detail and to check the information: