Cast-Iron Skillet Cornbread

Cast iron makes cornbread's bottom and edges part of the recipe. Preheating the skillet stores enough energy to set and brown the batter on contact, while a measured combination of baking powder, baking soda, and acidic buttermilk lifts the center.

Needed equipment

• 10-inch cast-iron skillet
• One mixing bowl
• Spoon or fork for mixing
• Dry and liquid measuring cups plus measuring spoons
• Oven mitts or thick, dry folded towels

Optional equipment

• Kitchen scale for faster, more repeatable flour and cornmeal measurements
• Second bowl for mixing the wet ingredients separately
• Whisk for quickly dispersing the leaveners and combining the wet ingredients
• Flexible spatula for scraping every bit of batter into the skillet

Ingredients

• 1 cup (140 grams) yellow cornmeal
• 1 cup (120 grams) all-purpose flour
• 2 tablespoons sugar, optional
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 3/4 teaspoon salt
• 1 1/4 cups buttermilk
• 2 large eggs
• 5 tablespoons butter or neutral oil, divided

Instructions

1. Put the cast-iron skillet in the oven and heat to 425°F. Let the skillet preheat for at least 10 minutes after the oven reaches temperature.
2. Stir the cornmeal, flour, sugar, baking powder, baking soda, and salt thoroughly in a large bowl. Break up every leavener lump.
3. Make a well in the dry ingredients. Add the buttermilk, eggs, and 3 tablespoons melted butter or oil, then stir the liquids together in the well before beginning to fold them into the flour mixture. If using an optional second bowl, combine the wet ingredients there first.
4. Pour the wet mixture into the dry. Fold just until no large pockets of dry flour remain. Small lumps are preferable to prolonged mixing.
5. Using oven mitts, move the hot skillet to a heat-safe surface. Add the remaining 2 tablespoons fat and carefully swirl to coat the bottom and lower sides.
6. Scrape in the batter; it should sizzle at the edge. Smooth the top once, return the skillet to the oven, and bake until deeply golden around the sides and set in the center, 18 to 22 minutes.
7. Cool in the skillet for 10 minutes, then cut into wedges. Move leftovers out of the skillet once cool so trapped moisture does not soften the crust.

Sensory indicators

The batter should be thick but spreadable. It should hiss when it meets the hot fat. Finished cornbread pulls slightly from the skillet edge, springs back when gently pressed in the center, and leaves only a few moist crumbs on a toothpick.

Common mistakes

If the crust is pale, the skillet was not fully preheated or the batter sat too long before baking. If the center is tough or tunneled, the batter was likely overmixed. If the exterior burns before the center sets, the skillet may be larger, thinner, or hotter than expected; reduce the oven by 25°F next time and check early.

Measure the small ingredients carefully. Baking soda and baking powder do different jobs, and extra does not mean extra fluffy.

Substitutions

No buttermilk is required: stir 1 tablespoon vinegar or lemon juice into enough milk to make 1 1/4 cups, then rest it for 5 minutes. The flavor and thickness will differ slightly, but the acid supports the baking soda. A 9-inch skillet makes thicker cornbread that needs more time. An 8-inch square metal pan works, though it will not store heat like cast iron.

For egg-free cornbread, use a recipe developed and tested without eggs rather than simply omitting them; eggs contribute liquid, binding, and structure.

Storage and reheating

Keep tightly wrapped at room temperature for 2 days or refrigerate for up to 5 days. Freeze wedges for about 2 months. Reheat in a covered skillet over low heat, then uncover briefly to restore the crust, or warm in a 300°F oven.

Variations

Fold in one cup of drained corn, chopped scallions, shredded cheddar, or diced pickled jalapenos. Wet additions soften the crumb, so drain them well and keep the total amount modest.