The edges of this casserole turn golden while the middle stays soft and tender, which is exactly the contrast I want from a corn side dish. I make Jiffy Corn Casserole when I want something more substantial than plain corn but don’t want to fuss with a separate sauce or a long list of ingredients.
Two kinds of canned corn do different jobs here. Creamed corn brings moisture and a soft, sweet base; drained whole kernel corn keeps distinct bites of corn throughout. The Jiffy mix gives the mixture enough structure to bake into a casserole instead of staying spoonable like a dip.
After it comes out of the oven, a short rest gives the center time to settle before you scoop into it. The finished casserole should be golden around the edges, set in the middle, and tender enough to serve with a spoon.

Kitchen Note
Fold the muffin mix in just until it disappears into the corn mixture. A few small lumps are fine; stirring until perfectly smooth can make the casserole denser than it needs to be.
Save this Jiffy Corn Casserole for its golden edges, tender center, and two kinds of corn in every scoop.
Why This Casserole Needs Both Creamed Corn and Whole Kernels
Using two kinds of corn isn’t just a way to make the dish look more interesting. Each can changes the texture of the bake. Creamed corn brings a soft, moist base that blends into the muffin mix, while the drained kernels stay intact and give each serving little bursts of corn. Use only whole kernels and you lose that creamy foundation; use only creamed corn and the casserole won’t have the same distinct bites.
The balance also explains why draining matters. Whole kernel corn carries liquid in the can, and that extra water can leave the center looser than you expect even after the edges have browned. Drain it well before it goes into the bowl. The mixture will still look quite wet before baking, but the muffin mix absorbs moisture as it cooks and helps the center set. You’re aiming for a casserole with a soft interior, not a dry cornbread and not a runny spoonful.
That’s the useful distinction from a pan of cornbread: this bake is meant to stay moist and scoopable. The edges give you a little more structure, while the middle remains tender. Let the two corn textures do their separate jobs, and the finished dish lands between a bread and a creamy corn side.
What Each Ingredient Brings to Jiffy Corn Casserole

- Jiffy Corn Muffin Mix — This mix provides the corn flavor and the dry structure that lets the casserole set. Plain cornmeal isn’t a direct substitute because it doesn’t bring the same flour and leavening balance. Keep the mix dry until it’s time to stir it into the wet ingredients.
- Creamed corn — It supplies much of the casserole’s moisture and gives the base its creamy texture. It isn’t the same as a can of whole kernels, so swapping one for the other changes how the dish holds together. Use the canned creamed corn called for here rather than trying to recreate it from drained kernels.
- Whole kernel corn — These kernels add a firmer bite against the soft base. Canned corn is convenient and consistent; drain it before mixing so its packing liquid doesn’t thin the casserole. Choose kernels that look intact rather than crushed if you want the most distinct texture.
- Sour cream — Sour cream adds tang and richness that balance the sweetness of the corn and muffin mix. Full-fat sour cream gives the most rounded, creamy result; a plain, unsweetened Greek yogurt can replace it in the same amount for a tangier, slightly firmer casserole.
- Unsalted butter — Melted butter carries richness through the batter and helps the edges bake up golden. Unsalted butter keeps the seasoning level predictable, though salted butter works in the same amount and will make the finished dish taste a little more seasoned.
- Nonstick cooking spray — A light coating helps the baked edges release cleanly from the square dish. Coat the bottom and corners rather than spraying heavily; a thick layer isn’t needed for this moist casserole.
From Melted Butter to a Set, Golden Center
Prepare the Dish and Oven
Heat the oven to 350°F and lightly coat an 8-inch square baking dish with nonstick cooking spray. Get the dish ready before mixing so the batter can go straight into the oven once it’s combined. A thin, even coating is enough to help the edges release. Using the specified dish keeps the casserole at the depth that matches the baking time.
Bring the Wet Ingredients Together
Melt the butter, then give it a little time to cool before stirring it with the sour cream in a large bowl. The butter should still be liquid, but it shouldn’t be piping hot when it meets the sour cream. Stir until the mixture looks creamy and mostly uniform. If the butter is still too hot, it can soften the sour cream unevenly.
Add the Corn, Then the Muffin Mix
Stir the creamed corn and drained whole kernel corn into the butter-and-sour-cream mixture. Once the corn is distributed, fold in the Jiffy mix until combined. Keep the mixing gentle rather than beating the batter; the goal is an even mixture, not a fluffy cake batter. Scrape the sides and bottom of the bowl so dry mix isn’t left hiding underneath.
Bake Until the Middle Sets
Spread the mixture evenly in the prepared dish and bake for 55 to 65 minutes. The edges should turn golden, and the center should look set rather than wet or liquid. If the edges are already golden but the middle still looks loose, give it more time within the baking window instead of taking it out early. Let the casserole rest for 10 minutes before serving so the center can settle.
Two Simple Swaps That Change the Finish
Use Greek Yogurt for a Lighter, Tangier Bake
Replace the sour cream with the same amount of plain, unsweetened Greek yogurt. The casserole will be less rich and a little firmer, with a sharper tang; choose full-fat yogurt if you want to stay closer to the creamy texture of sour cream.
Reach for Salted Butter if That’s What You Have
Use salted butter in place of the unsalted butter in the same amount. The casserole will have a more seasoned edge to its sweet corn flavor, but the texture won’t change. There’s no extra salt in this ingredient list to remove.
Storage and Reheating
- Refrigerator: Refrigerate leftovers within 2 hours and keep them covered for 3 to 4 days. The casserole firms up as it chills.
- Freezer: Freeze cooled portions in an airtight container for up to 2 months for best quality. Thaw overnight in the refrigerator; the corn may be a little softer after freezing.
- Reheating: Reheat covered in a 325°F oven until hot in the center, or warm individual portions in the microwave. Avoid reheating uncovered for too long, which can dry the edges before the middle is warm.
Questions That Come Up While Baking This Corn Casserole

Jiffy Corn Casserole
Ingredients
Equipment
Method
- Heat the oven to 350°F.
- Lightly coat an 8-inch square baking dish with nonstick cooking spray.
- Melt the butter and let it cool slightly, then stir it together with the sour cream in a large bowl.
- Stir in the creamed corn and drained whole kernel corn, then fold in the corn muffin mix just until combined.
- Spread the mixture evenly in the prepared dish and bake for 55 to 65 minutes, until the edges are golden and the center is set.
- Let the casserole rest for 10 minutes before serving.


