Sourdough Discard Cornbread Recipe

Name: Fluffy Skillet Sourdough Discard Cornbread Recipe
Prep time: 10 min
Cook time: 20 min
Total time: 510 min
Ingredients: 1 cup buttermilk; 1/2 cup whole milk; 1 large egg (room temperature); 3 tablespoons honey or 1/4 cup granulated sugar; 1 teaspoon salt; 1 tablespoon baking powder; 1/3 cup sunflower oil or melted butter; 1 cup yellow cornmeal; 1 cup all-purpose flour; 1/2 cup sourdough starter or discard

This sourdough discard cornbread bakes up golden in a cast-iron skillet with crispy edges, a tender crumb, and a mild tang from sourdough starter or discard that makes it taste more complex than any standard cornbread recipe.

The batter comes together in one bowl in about 10 minutes, goes straight into a hot skillet, and is on the table in under 30 minutes.

If you love baking with your sourdough discard, you will also love Sourdough Discard Waffles | or Pancakes, Sourdough Granola | Discard or Starter, and Cozy Cottage-Style Sourdough Cornbread Dressing Recipe.

sourdough discard cornbread slice with butter on white plate with full cornbread in background

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Why You’ll Love This Recipe

One bowl, one skillet — The batter comes together in a single bowl with no stand mixer and no special equipment. Everything goes into the hot cast iron skillet and straight into the oven. Cleanup takes minutes.
Sourdough starter or discard — This recipe works with whatever you have on hand. Unfed discard adds a mild tang and works beautifully here without any special timing or feeding required. Active starter works just as well and gives a slightly more pronounced flavor.
Crispy edges every time — Preheating the cast iron skillet before the batter goes in is the step that separates a good cornbread from a great one. The moment the batter hits the hot buttered pan, the edges begin to set and crisp. That golden crust is what makes this worth making in cast iron every single time.
Sweet or savory, your choice — Honey gives a natural, rounded sweetness that works beautifully with the sourdough tang. Skip the sweetener entirely and this cornbread becomes a savory side that pairs with chili, soup, or a bowl of red beans and rice.
Pantry staples only — Yellow cornmeal, all-purpose flour, buttermilk, eggs, and sourdough discard. Nothing unusual, nothing to hunt down. This is the kind of recipe you can pull together on a weeknight without a grocery run.

Ingredients

For The Cornbread Batter

Sourdough discard or active starter –– Either works here with no adjustments needed. Discard adds a mild tang and thins the batter slightly. Active starter gives a touch more flavor depth. Both are measured at ½ cup (120 grams) and cold discard straight from the fridge is perfectly fine.
Buttermilk — The buttermilk is what gives this cornbread its tender, moist crumb. It reacts with the baking powder to help the batter rise and keeps the interior soft even after the edges crisp up in the skillet.
Whole milk — Combined with the buttermilk, whole milk balances the richness and keeps the batter from being too thick. Lower fat milk will work but the crumb will be slightly less tender.
Egg — One large egg at room temperature binds the batter and adds moisture. It also contributes to the golden color on top as the cornbread bakes.
Honey — Three tablespoons of honey adds a natural, rounded sweetness that works with the sourdough tang rather than fighting it. For a less sweet, more savory cornbread, reduce to one tablespoon or skip it entirely.
Yellow cornmeal — The base of the recipe and the ingredient that gives cornbread its classic texture and color. Yellow cornmeal produces a slightly coarser, more rustic crumb than white cornmeal and a deeper golden color after baking.
All-purpose flour — Added alongside the cornmeal to give the batter structure and keep the crumb from being too dense or crumbly. The ratio here keeps the cornbread tender without losing that classic cornmeal bite.
Baking powder — The leavening agent that gives this cornbread its lift. Make sure yours is fresh — old baking powder is one of the most common reasons cornbread comes out flat and dense.
Salt — One teaspoon balances the sweetness of the honey and sharpens the overall flavor. Do not reduce it.
Sunflower oil or melted butter — Either works here. Butter adds richness and a slightly more complex flavor. Sunflower oil keeps the crumb moist and produces a lighter texture. I reach for butter every time

For the Skillet

Butter or bacon fat — This goes into the skillet before the batter and is what creates the crispy, golden crust on the bottom and edges of the cornbread. Bacon fat adds a savory depth that is worth trying at least once.

cornbread batter in glass bowl being mixed for sourdough discard cornbread recipe

Variations & Add-Ins

Jalapeno cheddar version — Fold 1 cup (113 grams) of shredded sharp cheddar and 2 tablespoons of finely diced fresh jalapeno into the batter before pouring into the skillet. The cheese melts into the crumb and the jalapeno gives a gentle heat that works beautifully against the sourdough tang.
Savory no-sugar version — Omit the honey entirely and add ¼ teaspoon of black pepper and 1 teaspoon of garlic powder to the dry ingredients. This version pairs especially well with chili, soup, or a bowl of New Orleans Red Beans and Rice | Authentic Creole Recipe.
Cornbread muffins — Pour the batter into a greased 12-cup muffin tin instead of the skillet and bake at 400°F for 14 to 16 minutes until the tops are golden and a toothpick inserted in the center comes out clean. The edges will not be as crispy but the muffins travel and store better.
Freshly milled flour version — Replace the all-purpose flour with freshly milled soft white wheat at the same weight, 120 grams. Sift before measuring for the lightest result. The flavor is nuttier and the crumb slightly more rustic — both work beautifully with the cornmeal.

Recipe Tips

Preheat the skillet, not just the oven — Place your cast iron skillet in the oven during the full preheat so it reaches 400°F before the butter goes in. A cold pan produces soft, pale edges. A hot pan produces the crispy golden crust this recipe is known for.

Do not overmix the batter — Stir until the wet and dry ingredients are just combined and stop there. Overmixing develops the gluten in the flour and produces a tough, dense cornbread instead of a tender one. A few small lumps in the batter are completely fine.

Check your baking powder — Drop a small amount into hot water. If it bubbles a lot, it is fresh. If it sits flat it needs to be replaced. Old baking powder is the most common reason cornbread comes out flat.

Use room temperature eggs — A cold egg can cause the batter to seize slightly and mix unevenly. Pull it from the fridge 20 to 30 minutes before you start.

Watch the edges, not the clock — The cornbread is done when the edges pull away slightly from the sides of the skillet and the top is golden and set in the center. A toothpick inserted in the center should come out clean. Start checking at 22 minutes.

Let it rest before slicing — Give the cornbread 5 minutes in the skillet before cutting into it. This allows the crumb to set and makes cleaner slices.

sourdough cornbread batter poured into cast iron skillet before baking

Instructions

Preheat the oven and skillet — Place a 10-inch cast iron skillet in the oven and preheat to 400°F (205°C). Allow the skillet to heat fully during the entire preheat — this is what creates the crispy edges.
Prepare the skillet — Carefully remove the hot skillet from the oven and add 1 tablespoon of butter or bacon fat. Swirl to coat the bottom and sides completely and return to the oven for 1 to 2 minutes until the butter is melted and sizzling.
Mix the dry ingredients — In a large bowl, whisk together the yellow cornmeal, all-purpose flour, baking powder, and salt until evenly combined.
Mix the wet ingredients — In a separate bowl or large measuring cup, whisk together the buttermilk, whole milk, egg, sourdough discard or active starter, honey, and sunflower oil or melted butter until smooth.
Combine the batter — Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix — stop as soon as no dry flour remains. The batter will be thick.
Pour and bake — Carefully remove the hot skillet from the oven and immediately pour the batter in. It should sizzle at the edges the moment it hits the pan. Return to the oven and bake for 22 to 25 minutes until the edges are golden, the top is set, and a toothpick inserted in the center comes out clean.
Rest and serve — Let the cornbread rest in the skillet for 5 minutes before slicing into wedges or squares. Serve warm with a pat of butter and a drizzle of honey.

sourdough discard cornbread slice topped with butter on plate in cozy kitchen setting

Freezing and Storage

Room temperature — Store fully cooled cornbread in an airtight container at room temperature for up to 2 days. Make sure it is completely cool before sealing to prevent moisture from softening the crust.
Refrigerator — Store in an airtight container in the refrigerator for up to 4 days. The edges will soften slightly in the fridge — reheat in a skillet or oven to restore the crust.
Reheating — Reheat slices in a dry skillet over medium heat for 2 minutes per side to restore the crispy edges. A 350°F oven for 8 to 10 minutes also works well. Avoid the microwave — it softens the crust completely.
Freezing — Wrap fully cooled slices individually in plastic wrap then foil and freeze for up to 2 months. Thaw at room temperature for 30 minutes then reheat in a skillet or oven before serving.
Make ahead — The dry and wet ingredients can be measured and mixed separately the night before and stored covered in the refrigerator. Combine them just before baking. Do not mix the full batter ahead of time — the baking powder will lose its lift overnight.

FAQ

Yes, unfed discard works perfectly in this recipe with no adjustments needed. It adds a mild tang and the buttermilk and baking powder carry the lift so the cornbread still rises beautifully. Cold discard straight from the fridge is fine and both are measured at ½ cup (120 grams).

Yellow cornmeal produces the classic golden color and slightly coarser crumb that most people expect from a skillet cornbread. Fine-ground cornmeal gives a softer, more cake-like texture while medium-ground gives a slightly more rustic bite. Either works in this recipe — avoid coarse-ground, which can make the crumb gritty.

Yes, combine ¾ cup whole milk with 1 tablespoon of white vinegar or lemon juice and let it sit for 5 minutes before using. It will curdle slightly and thicken, which is exactly what you want. The result is a reliable buttermilk substitute that works well here.

Preheat your cast iron skillet in the oven during the full preheat so it reaches 400°F before the batter goes in. Add the butter or bacon fat to the hot pan, swirl to coat, then pour the batter in immediately. The sizzle when the batter hits the pan is what creates the crispy golden crust.

Yes, an 8×8 or 9×9 inch square baking pan works well if you do not have cast iron. Grease it generously with butter and skip the preheat step. The edges will not be as crispy but the crumb and flavor will be the same. Bake at 400°F for 22 to 25 minutes.

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Emily Rider

Home miller since 1999 with fresh-milled flour & sourdough experience. Sharing from-scratch recipes and traditional kitchen skills, rooted in the seasons and inspired by everyday cottage living and seasonal rhythms.

About Me

Sourdough Discard Cornbread Recipe

Step into The Cottage Mill: Freshly Milled Flour Guides, Recipes, and More Await!

Why You’ll Love This Recipe