Cajun Oven-Roasted Corn on the Cob Recipe

The Cajun Corn on the Cob is a flavorful side that elevates any meal. Each ear is coated in melted Cajun butter and oven-roasted until the kernels are juicy with a lightly crisp exterior, delivering a satisfying sweet-and-spicy bite.

This recipe is perfect for busy cooks who want bold flavor with minimal effort. With just three ingredients and about five minutes of hands-on time, the Cajun seasoning provides a punch of savory heat that complements the natural sweetness of fresh corn.

To prepare, melt butter and stir in Cajun seasoning to make a simple spiced butter. Brush or pour this over shucked ears of corn so each kernel is evenly coated. If you prefer, make a homemade Cajun seasoning to control the salt and heat levels.

Oven roasting gives consistent results and great texture: a slightly caramelized exterior and tender, juicy kernels. This preparation pairs especially well with other Cajun-seasoned mains such as roasted salmon or grilled proteins.

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

Cajun Corn on the Cob Ingredient Highlights


Fresh corn on the cob works best for this recipe. You can buy ears with the husks and shuck them yourself, or purchase pre-shucked ears for convenience. Either option yields excellent results when oven-roasted.

Use unsalted butter to avoid over-salting, since most Cajun seasoning blends include salt. Seasonings vary by brand, so the amounts in the recipe are a good baseline but may need slight adjustment depending on how salty or spicy your blend is.

Some blends run hotter or saltier than others, so taste and adjust if necessary. If you like a milder result, reduce the seasoning slightly; for more heat, add a pinch extra.

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 a microwave-safe bowl, then stir in the Cajun seasoning until well combined. A pastry brush or spoon makes it easy to coat each ear evenly so every bite is seasoned.

Arrange the ears on a baking sheet in a single layer and roast on the middle rack at 425°F for about 20 minutes. The high heat helps develop a bit of color while keeping the kernels juicy.

For easy cleanup, line the baking sheet with aluminum foil rather than parchment; foil handles the higher oven temperature and any buttery drips.

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

Store leftover roasted corn in the refrigerator for up to 3–5 days. Wrap each ear in aluminum foil or place them together in an airtight container to preserve moisture and flavor.

To reheat, preheat the oven to 350°F. Keep the corn wrapped in foil and warm on the top rack for 5–7 minutes, or until heated through. A quick sprinkle of extra Cajun seasoning after reheating refreshes the flavor.

If you prefer, place foil-wrapped ears on a baking sheet for easier handling, or set them directly on the oven rack if you’re comfortable doing so.

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

This Cajun Corn on the Cob uses only three ingredients but delivers bold, balanced flavor. The spicy-salty seasoning enhances the natural sweetness of the corn while oven-roasting creates great texture.
Prep Time 5 minutes
Cook Time 20 minutes
Total Time 25 minutes
Servings 4 corn

Equipment

  • Baking Sheet

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 lining the baking sheet for cleanup, use aluminum foil rather than parchment.
  • In a microwave-safe bowl, melt the butter (about 30 seconds, then stir and heat in short bursts if needed). Stir in the Cajun seasoning until smooth.
  • Shuck the corn if needed and place the ears on the baking sheet. Brush or pour the Cajun butter over each ear, coating all sides.
  • Roast on the middle rack at 425°F for 20 minutes, until the corn has a bit of color and the kernels are tender. Serve warm.

Pro Tips

  • Leftover roasted corn keeps in the refrigerator for 3–5 days. Reheat wrapped in foil at 350°F for 5–7 minutes.

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