Creamy Slow Cooker Corn Casserole

Whenever I need a quick, easy side dish, I know I can rely on this creamy slow cooker corn casserole. It’s rich, decadent, and creamy, with chewy corn in a sweet-and-savory mix of brown sugar, spicy jalapeños, sour cream, and Jiffy cornbread mix. The best part is that it takes minutes to mix the ingredients, and then the slow cooker does the rest.

creamy corn casserole

Once you try this delicious holiday side dish, you will make it again and again! If you don’t have creamed corn, use this decadent Creamed Corn recipe. Having the slow cooker cook this crowd-pleasing side dish is so helpful, especially when I need to cook multiple dishes and need the oven space.

This classic side dish is fabulously creamy and has a nice sweet taste. During the holiday season, this is my go-to side dish. I combine all the ingredients in the crock pot and do my other recipes while it slow-cooks to perfection. It takes about 5 minutes to put it together, which is super convenient when cooking for large holiday gatherings. You know what makes it even better? Some juicy, perfectly fried bacon bits on top, which I highly recommend.

Serving creamy slow cooker corn casserole.

Why you will love this recipe 

  • Perfect for summer: I love making this during the summer because I don’t have to turn on the oven and heat the house. Then, I can relax and enjoy the weather without worrying about the AC turning on and running up the electricity bill.
  • Saves oven space: It’s also great if I want to use the oven to cook other things like turkey, roast, or ham. Sometimes I fill up the oven with nothing but desserts like pies, cookies, and cakes.
  • Simple dump-and-go: It takes me less than 10 minutes to dump everything in the pot, then I go about my day and let it cook. When I get home, dinner is ready.
  • No “cooking” involved: This recipe has just 2 steps. Mix it all in a bowl and dump it in the slow cooker. That’s it. The slow cooker does the rest. 

What you will need

Creamy slow cooker corn casserole recipe ingredients.
  • Produce: I use 2 cans of cream-style sweet corn because it has plenty of moisture and starchy liquid to bind the cornstarch together with a rich, sweet corn flavor. I also add 2 cans of whole kernel corn for pops of texture and bursts of corn flavor. I also add chopped, seeded jalapeños for fresh pepper flavor and mild heat.
  • Dry ingredients: I use Jiffy corn muffin mix because it provides the pre-blended cornmeal, leavening agents, and flour I need, plus its signature sweetness that my family loves. I don’t have to worry about measuring and mixing all the individual ingredients myself.
  • Wet ingredients: Melted butter provides richness and extra fat for a velvety texture. Beaten eggs act as the glue that holds it all together while also creating air pockets to make it lighter and cakey. Milk adds extra liquid to keep the mixture smooth and moist. Sour cream brings a subtle tangy taste and silky texture.
  • Seasonings: Brown sugar gives this casserole a deep, rich caramelized sweetness and extra moisture.

How to prepare

Spray the pot: First, I spray my slow cooker with nonstick cooking spray. 

Mix and cook: Then, I mix all the ingredients in a large bowl before dumping them into the prepared slow cooker. I set it on low for 6 hours. You could also set it on high for 3 hours if you’re in a hurry. 

steps how to make slow cooker corn casserole

Garnish and serve: Afterward, I serve with chopped green onions.

crockpot corn casserole

Expert tip

Using fresh, frozen, or canned corn

Many people have asked why I don’t use fresh corn more often in this recipe. I often use fresh corn myself if I am making it for a special dinner. However, if I am making it for the family in a hurry, canned corn is so much easier; it is always fresh and sweet, and I don’t have to worry about whether it is in season. Fresh corn has a better texture, with a wonderful crisp pop and a richer flavor. Frozen corn is often fresher than what you get off the cob and has a firm bite because it is flash-frozen. However, some brands are not as good as others and may add too much moisture. My favorite go-to is quality canned corn because it is always fresh, flavorful, and crisp. 

More tips to consider:

  • Do not overcook the casserole, or it will get dry even in a slow cooker. 
  • Don’t open the lid too often to check the temperature. Just check it once, 30 minutes before the recommended time.
  • Place a kitchen towel under the lid to prevent the condensation from dripping into the casserole and making it watery. 
  • Wait until after the cooking process to stir in the sour cream for a creamier texture. 
  • If using fresh or frozen corn, use 4 cups instead of 2 cans. It doesn’t need to be cooked first.
Overhead shot of creamy slow cooker corn casserole.

Recipe variations and add-ins:

  • Crack crockpot corn casserole: Make this simply irresistible by adding some of my ranch seasoning mix, crumbled bacon, and shredded cheddar cheese. You probably won’t have any leftovers.
  • Just add cheese: Another way to enhance this casserole is to add your favorite cheese, whether it is cheddar, mozzarella, American, Swiss, Colby, parmesan, or gouda.
  • More vegetables: Make this more flavorful and colorful by adding more veggies like peas, green beans, chopped bell peppers, carrots, and mushrooms.
  • Make it richer: Add cream cheese for an even creamier texture. 
  • Add meat: To make this a hearty meaty casserole, toss in some chopped ham, turkey, chicken, or other meat. 
Creamy slow cooker corn casserole.

Serving suggestions:

I like to serve this anytime I grill because it tastes so good with barbecued food. Whether I am just tossing some burgers and hot dogs on the grill for the family or making something more extravagant like this whole grilled chicken slathered with my homemade barbecue sauce, if the weather isn’t cooperating or I don’t feel like going outside, I can make my barbecue inside with this Instant Pot BBQ chicken recipe, which takes just 20 minutes for a crispy, delicious dinner.

These oven barbecue ribs are a favorite of mine: just 10 minutes of prep, then I let them cook low and slow in the oven for several hours until they are fall-off-the-bone tender. The recipe serves 8 people, or I can use the leftovers to make pulled pork sandwiches, which also go great with this corn casserole. For dessert, this rainbow fruit salad with honey lime dressing is full of different fruits, including blueberries, raspberries, grapes, strawberries, kiwi, mango, and pineapple.

How to store leftovers:

  • Refrigerate: Pack leftovers in an airtight container, and they will stay fresh in the fridge for several days.   
  • Freezing: Leftovers will also stay fresh in the freezer for 3 months in freezer bags.   
  • Defrost: I thaw my leftovers in the fridge overnight before reheating. 
  • Reheating: I reheat leftovers in the oven for 10 to 15 minutes at 350 degrees F.  
spoonful of corn casserole

Frequently asked questions

Why is my slow cooker corn casserole so mushy?

Since slow cookers tend to trap moisture, the lid drips water down into the casserole, making it soggy. I suggest placing a kitchen towel or paper towels under the lid to prevent the moisture from dripping into the food. Another issue is forgetting to drain the corn. If you use canned whole kernel corn, drain it first. Also, if the creamed corn is extra watery, drain the excess water. 

How do I keep my slow cooker corn casserole from being dry?

First, cook it on low and check it 30 minutes before it is supposed to be done. If it’s set in the middle and the edges are brown, it is done. Second, use enough fat and dairy. Don’t use low-fat or fat-free ingredients. I use melted butter, whole milk, and sour cream to keep my casserole from drying out. Also, spray the inside of the slow cooker to keep the edges from getting too hot and burning.

Why isn’t my casserole getting done in the middle?

Trapped condensation dripping into the middle of the casserole can cause this. If water keeps dripping into the center of the casserole, it will not be able to set. Place a clean towel or paper towels under the lid to keep the condensation from dripping. Too much liquid in the ingredients can also be the problem. Measure carefully and drain the corn well. Finally, make sure the heat is set correctly, and don’t open the lid too often. It probably just needs to cook for longer. Thick ceramic slow cookers take longer than metal.

How can I brown the top of this casserole?

To brown the top of the casserole, I place the ceramic insert in the oven for 10 to 15 minutes at 375 degrees F. However, if your slow cooker doesn’t have a ceramic insert or isn’t oven-safe, you’ll need to transfer it to an oven-safe dish first.

More delicious casseroles:

 

Loved this recipe? I’d love to hear from you! 💛 Leave a 5-star rating ⭐️ in the recipe card below and share your thoughts in the comments – I read and appreciate every single one!

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corn casserole

Slow Cooker Corn Casserole

Creamy Slow Cooker Corn Casserole is comforting and satisfying; it takes only 5 minutes to prepare with easy-to-find ingredients.
4.92 from 12 votes
Print Pin Rate
Course: Appetizer, Side Dish
Cuisine: American
Diet: Vegetarian
Keyword: Slow Cooker Corn Casserole
Prep Time: 5 minutes
Cook Time: 3 hours
Total Time: 3 hours 5 minutes
Servings: 6 servings
Calories: 464kcal

Ingredients

  • 2 8.5 oz boxes corn muffin mix
  • 2 14.75 oz cans cream-style sweet corn
  • 2 15 oz cans whole kernel sweet corn, drained
  • 1/3 cup butter melted
  • 2 eggs beaten
  • 1 cup milk
  • 2 jalapenos seeded and chopped
  • 1/4 cup brown sugar
  • 1 cup sour cream

Instructions

  • Combine all the ingredients in a large mixing bowl and mix well.
  • Spray a 4-quart casserole crockpot with nonstick cooking spray.
  • Transfer the batter to the prepared slow cooker.
  • Cover and cook on high for 3 hours or low for 6 hours.
  • Serve garnished with chopped onions.

Notes

Using fresh, frozen, or canned corn

Many people have asked why I don’t use fresh corn more often in this recipe. I often use fresh corn myself if I am making it for a special dinner. However, if I am making it for the family in a hurry, canned corn is so much easier; it is always fresh and sweet, and I don’t have to worry about whether it is in season. Fresh corn has a better texture, with a wonderful crisp pop and a richer flavor. Frozen corn is often fresher than what you get off the cob and has a firm bite because it is flash-frozen. However, some brands are not as good as others and may add too much moisture. My favorite go-to is quality canned corn because it is always fresh, flavorful, and crisp. 

More tips to consider:

  • Do not overcook the casserole, or it will get dry even in a slow cooker. 
  • Don’t open the lid too often to check the temperature. Just check it once, 30 minutes before the recommended time.
  • Place a kitchen towel under the lid to prevent the condensation from dripping into the casserole and making it watery. 
  • Wait until after the cooking process to stir in the sour cream for a creamier texture. 
  • If using fresh or frozen corn, use 4 cups instead of 2 cans. It doesn’t need to be cooked first.

Nutrition

Calories: 464kcal | Carbohydrates: 57g | Protein: 10g | Fat: 23g | Saturated Fat: 7g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 73mg | Sodium: 516mg | Potassium: 389mg | Fiber: 4g | Sugar: 23g | Vitamin A: 1011IU | Vitamin C: 10mg | Calcium: 145mg | Iron: 2mg
4.92 from 12 votes

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22 Comments

  1. Everyone loved this Corn Casserole! It was absolutely delicious! I will definitely be making this again and again!5 stars

  2. This corn casserole is wonderful and it was such a hit here! Everyone just loved this and begging for it again! I’ll definitely make this casserole again!5 stars

  3. The only reason why I’m giving this four stars and not five is because for whatever reason this did not cook up in the slow cooker? I don’t know what I did wrong but I made the recipe to the tea and I even put paper towels in between the lid and the crock pot so that it wouldn’t get mushy?
    So I had to end up transferring it from the crock pot to a baking dish and put it in the oven and it turned out phenomenal!! I’ll never not put jalapenos in my corn casserole!!!4 stars

  4. You said you can replace the brown sugar with honey. How much honey would I use to equal the required amount of brown sugar?5 stars

  5. This Slow Cooker Corn Casserole looks absolutely delicious! I love how easy it is to make and perfect for potlucks. Can’t wait to try it at our next family gathering. Thanks for sharing this recipe!

  6. This Slow Cooker Corn Casserole looks amazing! I love how easy it is to make, and the combination of sweet and savory flavors is just perfection. Can’t wait to try it for our next family gathering! Thanks for sharing!

  7. This Slow Cooker Corn Casserole looks absolutely delicious! I’m excited to try this recipe at my next family gathering. The combination of sweet and savory flavors sounds perfect, and I love how easy it is to make in a slow cooker. Thanks for sharing!

  8. I tried the Slow Cooker Corn Casserole recipe, and it was a huge hit at our family gathering! The sweetness combined with the savory flavors was just perfect. Thank you for sharing such an easy and delicious recipe! Can’t wait to make it again!

  9. This Slow Cooker Corn Casserole looks absolutely delicious! I love how easy it is to make in the slow cooker. Can’t wait to try this recipe for my next family gathering. Thanks for sharing!

  10. This Slow Cooker Corn Casserole looks absolutely delicious! I love that it’s both sweet and savory—perfect for family gatherings. I can’t wait to try this recipe out for our next potluck. Thanks for sharing!

  11. This Slow Cooker Corn Casserole looks amazing! I love how easy it is to prepare, and it sounds like a perfect side dish for gatherings. Can’t wait to try it out at our next family dinner! Thanks for sharing this recipe!