Jiffy Corn Casserole

Name: Jiffy Corn Casserole
Prep time: 10 min
Cook time: 50 min
Total time: 70 min
Ingredients: 0.5 cup unsalted butter (1 stick, melted and cooled slightly); 2 eggs (large); 1 cup sour cream; 1 can (14.75 oz) cream-style corn; 1 can (15 oz) whole kernel corn (drained); 1 box (8.5 oz) Jiffy corn muffin mix

The top can look ready before the middle has finished setting, which is why I watch the center instead of trusting the color alone. This Jiffy Corn Casserole bakes into…

By Julia • October 14, 2026 • Reading time: 8 min

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Tip: save now, cook later.

Serves 4–6

The top can look ready before the middle has finished setting, which is why I watch the center instead of trusting the color alone. This Jiffy Corn Casserole bakes into a golden, gently puffed top with a tender middle that’s more spoonable than a slice of cornbread. The broad 9×13-inch dish gives the batter room to cook evenly, and the two kinds of canned corn make every serving taste unmistakably like corn.

I like how little fuss the mixing takes: whisk the eggs, stir in the remaining ingredients, and stop once the dry mix disappears. There’s no need to beat the batter smooth. The sour cream and cream-style corn bring plenty of moisture, while the muffin mix gives the casserole enough structure to hold together after its short rest.

Let the melted butter cool slightly before it goes into the bowl, then give the finished casserole time to settle after baking. That small pause helps the middle firm up without losing its soft texture. On the table, it’s golden around the edges and tender all the way through.

Jiffy Corn Casserole golden creamy center

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Kitchen Note

Let the melted butter cool slightly before mixing it in. If it’s piping hot, it can start warming the eggs as you stir; slightly cooled butter blends smoothly into the batter.

Save this Jiffy Corn Casserole for a tender, creamy middle and a golden top made with two kinds of corn.

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Why This Casserole Stays Tender Instead of Turning Into Cornbread

Jiffy Corn Casserole uses a corn muffin mix, but the finished dish isn’t meant to have the dry, airy crumb of a muffin. Sour cream and cream-style corn keep the batter moist, and the whole kernels add little bites of texture through the soft middle. That balance is what makes it work as a casserole you can scoop, rather than a pan of cornbread that needs to be cut into tidy squares.

The batter will look loose compared with muffin batter, and that’s expected. The goal isn’t to add extra mix or keep stirring until everything looks thick. Use the full 9×13-inch dish so the batter spreads into an even layer; a deeper layer takes longer for the middle to set, even if the top has already turned golden. Once baked and rested, the center should hold together while staying soft and creamy.

How the Two Cans of Corn Shape Every Bite

Cream-style corn — This adds moisture and a soft, almost custardy texture that whole kernels can’t provide on their own. Use the can as it comes; don’t drain it.
Whole kernel corn — The drained kernels give the soft casserole contrast and a clear corn bite. Drain them well so extra liquid doesn’t thin the batter.
Jiffy corn muffin mix — The boxed mix supplies the dry base and the structure that helps the casserole set. Keep to the named mix for the tested texture rather than assuming another boxed mix will bake identically.
Sour cream — Its creamy body keeps the interior tender and adds a gentle tang. A fresh tub is all you need; there’s no special brand requirement.
Eggs and unsalted butter — The eggs help the casserole hold together, and butter adds richness. Melt the butter before mixing, and use unsalted butter so the casserole doesn’t pick up extra salt from a salted stick.

Mixing and Baking for a Set, Golden Center

Prepare the pan and melt the butter

Heat the oven to 350°F and grease a 9×13-inch baking dish. Melt the butter and let it cool slightly while you get the other ingredients ready. The baking dish should be greased across the base and sides so the soft casserole doesn’t cling when you serve it. Keep the oven at the listed temperature; a hotter oven can brown the surface before the middle is set.

Stir just until the dry mix disappears

Whisk the eggs in a large bowl first, then stir in the sour cream, cream-style corn, drained whole kernel corn, corn muffin mix, and melted butter. Work around the bottom and sides of the bowl, where dry pockets tend to hide. Stop once no dry mix remains; the batter doesn’t need to be beaten smooth. If you keep stirring after everything is combined, you’re doing extra work without improving the casserole.

Spread the batter and check the middle

Transfer the mixture to the greased dish and spread it into an even layer. Bake for 45 to 55 minutes, looking for a golden top and a center that has set rather than a wet, liquid-looking middle. Ovens and baking dishes can vary, so use an instant-read thermometer in the center as the final check: it should reach 160°F. If the top is already golden but the center hasn’t reached that temperature, keep baking and check again.

Give it a short rest before serving

Take the dish out of the oven and let the casserole rest for 10 minutes. The center continues to settle during that pause, making it easier to scoop without the mixture running back into the space you’ve served from. Don’t rush straight from oven to table. The texture is at its best once the casserole has had that brief chance to firm.

Two Practical Swaps for a Different Texture

Use plain Greek yogurt in place of sour cream

Swap in the same amount of plain, full-fat Greek yogurt for the sour cream. It keeps the batter creamy and adds a slightly tangier note; avoid sweetened or flavored yogurt, which would change the casserole’s taste.

Trade canned whole kernels for thawed frozen corn

Use 15 ounces of frozen corn in place of the can of whole kernel corn. Thaw it completely and pat it dry before stirring it in; the casserole will have a slightly firmer, fresher-tasting kernel bite. Keep the cream-style corn in the mixture, since it supplies a different texture.

Storage and Reheating

Refrigerator: Store covered for 3 to 4 days. The middle may firm up as it chills.
Freezer: Freeze cooled portions in an airtight container for up to 2 months. Thaw them in the refrigerator; the texture may be a little softer after freezing.
Reheating: Warm a portion in the microwave in short bursts until hot throughout, or cover a larger portion and warm it in the oven. Reheat gently; prolonged high heat can dry the edges before the center warms.

Questions That Come Up Before the Casserole Goes in the Oven

Can I use salted butter instead of unsalted butter?+

Yes, but the finished casserole will taste saltier because salted butter brings salt that isn’t included in the ingredient list. Unsalted butter gives you more control over that seasoning.

Can I mix the casserole batter the night before?+

For the best texture, mix it shortly before baking. Once the wet ingredients meet the muffin mix, letting the batter sit overnight can reduce the lift from the mix and leave the casserole denser.

Can I use fresh corn instead of the cream-style corn?+

Fresh kernels aren’t a direct replacement for cream-style corn. They add corn pieces, but they don’t provide the same moist, creamy base, so using them in its place would change how the casserole sets.

Can I bake this in a glass 9×13-inch dish?+

Yes, a glass dish of that size works. Since glass can heat differently from other baking dishes, pay attention to the casserole’s center and use the thermometer check rather than relying on the top’s color alone.