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Air Fried Blooming Onion (Gluten-Free)

Air Fryer Fanatics
Make the best Air Fried Blooming Onion that is also easy to make Gluten-Free too!
4.5 from 26 votes
Prep Time 15 mins
Cook Time 15 mins
Additional Time 2 hrs
Total Time 2 hrs 30 mins
Course Air Fryer Snack Recipes
Cuisine American
Servings 6
Calories 447 kcal


  • 1 Large Sweet Onion
  • 1 Cup Buttermilk
  • 1-2 Cups Gluten-Free All Purpose Flour or Regular Flour
  • 2 Eggs Beaten
  • 2 Cups Gluten-Free Breadcrumbs or Regular Bread Crumbs
  • 1 Tsp Salt
  • 1 Tsp Cajun Seasoning


  • Begin by peeling the onion.
  • Once it's peeled, trim the side with the root just to make it trimmed and more flat.
  • Cut the other side flat.
  • Starting at the root, slice it down from the root to the other end, space it out and do the same all the way around the onion.
  • Carefully separate each layer.
  • Soak the onion for 1-2 hours in the buttermilk.
  • Once it's fully soaked, shake off any excess liquid and then place the onion in the flour, start with 1 cup of flour and add additional as needed. Coat well.
  • Once it's fully coated, use a brush and carefully brush the egg onto the onion being sure to get into each layer.
  • Spray a sheet of foil with Olive Oil Spray, cut the foil to fit into the air fryer rolling it up on the sides so that air can still easily circulate.
  • Place the onion carefully on the foil.
  • Coat with the breadcrumbs.
  • Lastly evenly sprinkle with salt and seasoning.
  • At this point, you can do another coat of olive oil spray just to add some extra moisture.
  • Cook in the air fryer at 390 degrees for 15 minutes.
  • Carefully remove and serve.



Be sure to check on the onion after about 8 minutes to be sure it does not overcook. Each air fryer is going to heat a little bit differently. This took 15 minutes in our air fryer without pre-heating.
The instructions are detailed; however, this recipe is quite simple and remember that you are going to likely find a method that works best for you as you go about making it.
Keep these things in mind:
  • Soak in Buttermilk
  • Dip in Flour
  • Coat with Egg
  • Sprinkle on the breadcrumbs and seasoning
  • Air Fry
  • Eat!


Serving: 1gCalories: 447kcalCarbohydrates: 83gProtein: 16gFat: 5gSaturated Fat: 1gPolyunsaturated Fat: 3gCholesterol: 64mgSodium: 972mgFiber: 4gSugar: 7g
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