Cajun Baked Onion Rings

Baked Onion Rings are crispy and flavored with Cajun seasonings for a great appetizer or side dish. They’re easy to make and great for parties, game day, or anytime you’re craving some crispy hot onion rings.

a basket of cajun onion rings.

They look deep-fried but these onion rings are baked in the oven instead. So, we’re talking less oil, less mess but all the same delicious crispiness with the added spicy flavor oomph from Cajun seasoning and hot sauce. In other words, a must make appetizer, snack, or side dish. I think you’re going to love these baked onion rings.

Recipe Highlights

  • This recipe is easy – slice the onions, dip and coat them, and into the oven they go. 20 minutes later they’re golden and crispy!
  • You don’t need any flour or eggs for this recipe. Instead, I use cornstarch which helps thicken the batter so it really sticks to the onion rings.
  • They’re a lot lighter than their deep-fried cousins but with all the satisfying crunch you want in an onion ring.
ingredients for baked onion rings.

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  • Large white onions
  • Cornstarch
  • Milk
  • Hot sauce
  • Panko breadcrumbs
  • Cajun seasoning
  • Garlic salt
  • Cooking spray

How to Bake Onion Rings

Slice the onions into 1/4″ rings. Whisk the cornstarch, milk, and hot sauce in a shallow bowl. Mix the panko, Cajun seasoning, and garlic salt in a separate shallow dish.

breaded onion rings on a sheet pan.

Dip the onion slices in the milk mixture and then coat them in the panko mixture. Place the breaded onion rings on a baking sheet coated with cooking spray.

Bake them at 450°F for 20 minutes or until they are golden brown and crispy.

Recipe Tips

I like to use white onions, but feel free to use large yellow onions.

When you bread the onions, use one hand for the dry mixture and your other hand for the milk mixture. This will make it easier to keep the panko mixture dry.

After you’ve coated a ring in the wet ingredients, I think it’s easier to lay the onion ring in the panko and then sprinkle the top with the breadcrumbs. Lightly press the breadcrumbs onto the ring so they stick.

These Cajun onion rings are best served hot from the oven while they’re nice and crispy. If you have leftovers, they’ll keep in the refrigerator for a few days. The coating will soften so the best way to reheat them is in an air fryer or in the oven.

For a twist, try swapping the milk for buttermilk for an extra tangy flavor.

Dipping Sauces

They’re great all on their own, but adding a favorite dipping sauce on the side is always a good thing.

close-up shot of a baked onion ring on a sheet pan.

I hope you give these Cajun onion rings a try soon! Every last crispy bite is a delight – Enjoy!

Happy cooking,

overhead shot of cajun onion rings.

More Snacks and Appetizers

📣 Do you love this recipe? I would love to know! Leave a comment below the recipe along with your recipe star rating.


Cajun Baked Onion Rings

a basket of cajun onion rings.

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 2 reviews

Baked Onion Rings are crispy and flavored with Cajun seasonings for a great appetizer or side dish. 

  • Author: April Anderson
  • Prep Time: 25 minutes
  • Cook Time: 20 minutes
  • Total Time: 45 minutes
  • Yield: 4 servings 1x
  • Category: Appetizers
  • Method: Bake
  • Cuisine: American


  • Cooking spray
  • 2 large white onions, sliced into ¼” rings
  • 2/3 cup cornstarch
  • 1/2 cup 2% milk
  • 2 tablespoons hot sauce
  • 1 1/2 cups panko breadcrumbs
  • 2 tablespoons Cajun seasoning
  • 1/2 teaspoon garlic salt


  • Preheat the oven to 450°F and spray two large baking sheets with cooking spray.
  • In a medium bowl, whisk the cornstarch, milk, and hot sauce.
  • In a shallow bowl, combine the panko, Cajun seasoning, and garlic salt.
  • Dip each onion ring into the cornstarch mixture then dredge them in the panko. Lightly press the panko onto the rings so it sticks. Place the breaded onion rings in a single layer on the prepared baking sheets.
  • Bake the onion rings for 20 minutes or until the breading is golden and crispy.


  • Calories: 296
  • Sugar: 8.2g
  • Sodium: 614.2mg
  • Fat: 3.1g
  • Saturated Fat: 0.9g
  • Unsaturated Fat: 1.6g
  • Trans Fat: 0g
  • Carbohydrates: 58.6g
  • Fiber: 3.5g
  • Protein: 7.5g
  • Cholesterol: 2.5mg

Do you love this recipe? Don’t forget to leave a comment and your recipe star rating!

The nutrition is an estimate only. It was calculated using Nutrifox, an online nutrition calculator.


  1. Wow! Were these ever delicious! I used my homemade Cajun seasoning and otherwise followed your recipe to the letter. It didn’t disappoint! My husband declared these the best onion rings he’s ever eaten. Thanks so much for the recipe!

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