Preheat the oven to 350°F, and lightly spray a 9x9-inch baking pan with cooking spray.
Place the butter into the pan, and place it in the oven long enough to melt the butter, about 4 to 5 minutes.
½ cup unsalted butter
Meanwhile, whisk together the flour, cornmeal, baking powder, and salt in a large mixing bowl.
1 ½ cups all-purpose flour, 1 cup cornmeal, 1 tablespoon baking powder, 1 tsp. salt
Pour in the milk, buttermilk, eggs, creamed corn, sour cream, and melted butter from the pan. Stir until the ingredients are well combined. The batter should be very wet, thinner in consistency than most cornbread batters, and have a fluffy texture.
1 cup whole milk, ½ cup buttermilk, 2 large eggs, 14.75 ounces creamed corn, 8 ounces sour cream
Transfer the batter to the buttered baking pan, and bake for 40 to 50 minutes or until the top is lightly browned and a toothpick inserted into the center comes out clean. The cornbread will be very moist and dense.
Serve warm with your favorite entree, a drizzle of honey, or a pat of butter.
See post for tips and storage options.