Heat your oven to 400℉.
Brown the butter in the cast iron skillet. To brown butter, melt the butter slowly until the popping stops and the butter solids have just started to brown. Remove the pan from the heat, and let it cool slightly as you make the cornbread batter.
½ cup (1 stick, 8 tablespoons, or 113 grams unsalted butter
Whisk all of the dry ingredients together in a large bowl.
1 cup (160 grams) fine yellow cornmeal, 1 cup (125 grams) all-purpose flour, 1 tablespoon baking powder, 1 teaspoon salt, ½ teaspoon baking soda
Measure out the buttermilk in a 2 or 4 cup glass measuring cup. Then add the egg and honey to the measuring cup and beat the liquid ingredients together lightly.
1 cup (245 grams) buttermilk, 1 large egg, ¼ cup (84 grams)honey
Add the liquid ingredients from the measuring cup and the brown butter to the dry ingredients, scraping out the butter with a silicone spatula. Stir only until you can no longer see any pockets of flour.
Add in the corn kernels and chopped green onions and stir gently. Do not over mix.
½ cup corn kernels, ¼ cup finely chopped green onions or chives
Add the cornbread batter to the cast iron skillet, being careful if the skillet is quite warm. Smooth out the top as much as you can with your spatula.
Turn down the oven to 350℉ and bake for 20 to 25 minutes until a toothpick inserted into the center comes out clean.
Let cool for at least 10 minutes before serving, but this brown butter cornbread is best when still warm. Enjoy!