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Oven-Roasted Cajun Corn on the Cob

on July 14, 2025
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This Cajun Corn on the Cob requires just 3 ingredients yet still has bold flavor. The spicy and savory seasoning complements the naturally sweet corn. It's oven-roasted for a crisp and juicy texture.
Overhead image of Cajun corn on the cob that's been roasted in the oven.

The Cajun Corn on the Cob makes for a delicious side dish to complete any meal. It’s simply coated in a generous layer of melted Cajun butter and roasted in the oven to crisp and juicy perfection for a balanced sweet and spicy bite.

As a time-strapped mom who never settles for boring flavor, I love a bold spice blend that brings tons of taste with just one ingredient. The Cajun seasoning is key in this corn on the cob recipe that requires just 3 ingredients and 5 minutes of hands-on time.

Here, we just melt some butter and mix it with the savory seasoning blend to instantly add depth of flavor to the corn. You can even make your own homemade Cajun seasoning very easily to have on hand for other dishes, too.

By the way, this corn makes the perfect side to this Roasted Cajun Salmon, which also utilizes this seasoning blend.

The salt and spice from the seasoning is the perfect complement to the naturally sweet corn, and the oven-roasting method gives you amazing texture every single time.

4 ears of roasted corn sprinkled with Cajun seasoning lined up on a board.

Cajun Corn on the Cob Ingredient Highlights


This recipe is best with fresh corn on the cob. We will not require the husks for roasting, so you can buy them and shuck them on your own or buy them pre-shucked.

I prefer unsalted butter in this recipe because the Cajun seasoning already has salt in it. As with any recipe that utilizes a seasoning blend, it’s important to note that different brands vary in their salt and spice levels.

The amounts indicated in this recipe will work great with most blends but just bear in mind that some (like Slap Ya Mama seasoning for instance) are very heavy on the salt and spice, so you may want to adjust accordingly.

All the ingredients for Cajun corn on the cob - butter, ears of corn, and Cajun seasoning.

Corn on the Cob with Cajun Seasoning Tips and Tricks


How I Perfectly Season and Roast my Corn Every Time

Melt the butter in the microwave and stir in the Cajun seasoning. I like to use a pastry brush to evenly coat my corn with the Cajun butter, ensuring that each bite will be well-seasoned.

Then, spread your corn on the cob out on a baking sheet and roast it on the middle rack of your oven for 20 minutes at 425°F.

If you want to line your baking sheet for quicker cleanup, use aluminum foil, not parchment paper.

Mixing together melted butter and Cajun seasoning to make a quick Cajun butter to rub on corn on the cob.
Melt the butter and mix in the Cajun seasoning.
Brushing Cajun butter onto corn on the cob before roasting it in the oven.
Brush or pour the Cajun butter onto the corn in an even layer.
Cajun Roasted Corn on the Cob fresh out of the oven still on the baking tray.
Roast the corn at 425°F for 20 minutes on the middle rack.

How I Store Leftover Cajun Corn on the Cob

Leftover roasted corn on the cob is best when enjoyed within 5 days. I find it easiest to just wrap it in aluminum foil and place it in the refrigerator.

That way, you can just preheat your oven to 350°F, grab the leftover corn, and place it on the top rack all wrapped in the foil. It only needs about 5-7 minutes to reheat in the oven.

You may want to sprinkle a little extra seasoning on top once it’s reheated.

I typically just place the foil-wrapped corn directly on the oven rack, but you can also put it on a baking sheet for easier removal, whatever you prefer.

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Overhead image of Cajun corn on the cob that's been roasted in the oven.

Oven-Roasted Cajun Corn on the Cob

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Marley Goldin
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This Cajun Corn on the Cob requires just 3 ingredients yet still has bold flavor. The spicy and savory seasoning complements the naturally sweet corn. It's oven-roasted for a crisp and juicy texture.
Prep Time 5 minutes
Cook Time 20 minutes
Total Time 25 minutes
Servings 4 corn

Equipment

Ingredients
 
 

  • 2 tablespoons unsalted butter
  • 2 teaspoons Cajun seasoning (storebought or homemade)
  • 4 ears corn on the cob

Instructions
 

  • Preheat the oven to 425°F. If you want to line your baking sheet for quicker cleanup, use aluminum foil, not parchment paper. I use a small 6.5×9-inch baking sheet for this recipe and do not usually line it.
  • In a microwave-safe bowl, melt the butter by microwaving for 30 seconds. If it needs more time, continue to heat in 10-second intervals stirring in between. Stir in the Cajun seasoning.
    2 tablespoons unsalted butter, 2 teaspoons Cajun seasoning
  • Shuck the corn if necessary and line up on your baking sheet. Brush the Cajun butter onto the corn in an even layer so that it's completely coated on all sides.
    4 ears corn on the cob
  • Roast the corn on the middle rack of the oven at 425°F for 20 minutes. Try it with this Cajun Remoulade!

Pro Tips

  • Leftover roasted corn will last in the refrigerator for 3-5 days. Check the post for reheating instructions. 

Video

Course Appetizers, Sides
Cuisine American
Diet Vegetarian
Keyword 30 Minutes or Less, 5 Ingredients or Less, Corn on the Cob, Sheet Pan, Vegetable Side Dish
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