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grilled blooming onion in a mini cast iron skillet

Grilled Blooming Onion

Take your favorite Aussie appetizer outdoors with this easy recipe for grilled blooming onion.
Course Appetizer
Cuisine American
Keyword blooming onion, grilled, onion
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 4
Calories 303 kcal
Author Christie Vanover


  • 2 large onions
  • 1/4 cup barbecue sauce
  • 1 egg beaten
  • 1/2 cup panko breadcrumbs
  • 1/2 tsp kosher salt
  • 1/2 tsp garlic powder
  • 1/2 tsp Cajun seasoning
  • 1/2 cup mayonnaise
  • 2 tbsp barbecue sauce


  1. Lay the onion on its side. At the pointed end (not the root), slice about one-half inch off of the onion. Remove the skin.
  2. Lay the onion cut-side-down, root side up.

  3. Place your knife point about ¼-inch from the root and slice down. Rotate the onion and continue making slices every ¼ to ½ inch.

  4. Turn the onion over and gently separate the petals.

  5. In a deep bowl large enough to fit the onion, combine the BBQ sauce and beaten egg. Dip the onion into the sauce, working the sauce onto every petal.

  6. Place the onion into a Mini Lodge cast iron skillet.
  7. In another bowl, combine the breadcrumbs, salt, garlic powder and Cajun seasoning. Sprinkle the breadcrumbs onto every petal. Repeat with the second onion.
  8. Heat the grill to 400 degrees. Place the skillets on the grill and cook with the lid closed for 30 minutes.

  9. Mix the mayonnaise with 2 tablespoons of BBQ sauce. Serve as a dipping sauce.


Vidalia onions work really well with this recipe because they're nice a sweet.

If the tips of the onions start to burn, you can cover the onions with a loose piece of foil.

Nutrition Facts
Grilled Blooming Onion
Amount Per Serving
Calories 303 Calories from Fat 198
% Daily Value*
Fat 22g34%
Saturated Fat 3g19%
Cholesterol 52mg17%
Sodium 830mg36%
Potassium 127mg4%
Carbohydrates 22g7%
Sugar 15g17%
Protein 2g4%
Vitamin A 250IU5%
Vitamin C 0.2mg0%
Calcium 30mg3%
Iron 0.8mg4%
* Percent Daily Values are based on a 2000 calorie diet.