Set out the buttermilk and egg so they reach room temperature; we don’t want these cold when using! Preheat oven to 350°F.
Melt 10 tablespoons of butter in the microwave. Set aside to return to room temperature. Don’t add hot melted butter to the other ingredients—make sure it’s at the same temperature as the other wet ingredients.
In a very large bowl, combine the cornmeal, flour, baking powder, baking soda, salt, and cornstarch.
In another bowl, mix the buttermilk, egg, honey, and light brown sugar. Whisk until smooth. While whisking, slowly drizzle in the melted (but room temperature) butter. Once butter is all mixed in, whisk for another 1–2 minutes or until quite smooth and combined.
Pour all the wet ingredients into the dry ingredients and stir with a wooden spoon until just combined. Do not overmix.
Melt the other 2 tablespoons butter and, using a pastry brush, coat the insides of all the cavities. You don’t need to use all the butter, but grease the entire sides and bottom of the cavities. Fill buttered muffin tins 3/4 full. The batter should fill all 12 cavaties.
Bake for 19–23 minutes (my oven always takes 20 minutes) or until cornbread is lightly browned on the edges and a toothpick inserted into the center comes out clean or with few moist crumbs.
Remove cornbread from the oven and allow to cool in the pan 5 minutes. Use a fork or spoon to gently pull out the cornbread and transfer to a wire cooling rack to continue to cool. Be gentle; these muffins are delicate and tender!
Video
Notes
Storage: Cornbread Muffins are best enjoyed the same day they’re made. If you have leftovers, wrap each muffin individually and store at room temperature for 1–2 days.