Preheat The Oven & Prep Your Pan. Start by preheating the oven to 350 degrees F. Line an 8x8" metal pan with parchment paper and set aside.
Combine The Dry Ingredients. In a large bowl, combine gluten-free flour blend, cornmeal, sugar, baking powder, and salt. Whisk until well combined.
Mix In The Milk & Eggs. Add milk and eggs to the dry ingredients and begin to whisk.
Whisk In The Melted Butter. Slowly drizzle in the melted butter, whisking until just incorporated. (A few small lumps are ok--just no large dry patches)
Bake. Pour the cornbread batter into your prepared baking dish and bake at 350 degrees for 30-35 minutes, or until a toothpick inserted in the center comes out clean with just a few moist crumbs.
Cool for 10-15 minutes before cutting into slices.
Notes
Flour. We highly recommend King Arthur gluten-free measure for measure flour for this cornbread. If you use another 1:1 gluten-free flour blend, be sure it contains xanthan gum or your cornbread will not turn out properly. Almond flour, coconut flour, oat flour, etc. will not work in this recipe.
Reduce The Sugar. This cornbread runs on the sweet side. If you want to reduce the sugar, I suggest reducing down to 1/2 cup (100 grams) for starters. You can go as low as 1/3 cup (67 grams), but keep in mind the less sugar you add the more dry the cornbread will become.