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Crispy Blooming Onion Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.8 from 24 reviews
  • Author: Emily
  • Prep Time: 20 minutes
  • Cook Time: 8 minutes
  • Total Time: 28 minutes
  • Yield: 4 servings
  • Category: Appetizer
  • Method: Frying
  • Cuisine: American

Description

This classic Blooming Onion recipe features a large sweet onion handcrafted into a flower shape, breaded with a flavorful blend of spices, and deep-fried until crispy and golden. Perfect as an appetizer or snack, it comes with an optional dipping sauce to enhance its savory taste.


Ingredients

Scale

Frying Oil

  • 4 quarts high-heat oil (canola, corn, or peanut)

Onion and Breading

  • 1 large sweet onion (13 to 14 ounces), such as Vidalia
  • 1 cup all-purpose flour
  • 1 tablespoon paprika
  • 3 teaspoons kosher salt, divided
  • 1 teaspoon dried oregano
  • 3/4 teaspoon cayenne pepper
  • 3/4 teaspoon ground cumin
  • 3/4 teaspoon garlic powder
  • 1/2 teaspoon freshly ground black pepper

Egg Wash

  • 2 large eggs
  • 1/2 cup buttermilk or whole/2% milk

Optional

  • Dipping sauce (optional)


Instructions

  1. Heat the Oil: Heat 4 quarts of high-heat oil in a large stockpot over medium-high heat until it reaches 375ºF. Ensure there is enough space to prevent overflow when adding the onion.
  2. Prepare the Breading Mix: In a large bowl, whisk together 1 cup flour, 1 tablespoon paprika, 2 1/2 teaspoons kosher salt, 3/4 teaspoon cayenne pepper, 1 teaspoon dried oregano, 3/4 teaspoon ground cumin, 3/4 teaspoon garlic powder, and 1/2 teaspoon black pepper. Remove about 3/4 cup of this mixture for later use and set aside.
  3. Make the Egg Wash: In a medium bowl, whisk 2 eggs, 1/2 cup buttermilk (or milk), and the remaining 1/4 teaspoon kosher salt until combined.
  4. Cut the Onion: Trim 1/2 to 3/4 inch off the stem end of the onion, peel the outer skin, and place it root-side up on the cutting board. Carefully make cuts about 1/2 inch below the root, slicing downward without a back-and-forth motion, turning the onion clockwise after each cut to create a total of 16 sections while keeping the root intact.
  5. Open the Onion: Flip the onion over and gently spread the petals to open it like a flower. Use a knife tip to free any stuck sections in the center to prevent raw onion left inside.
  6. First Flour Coating: Place the onion cut side up into the flour mixture in the bowl, sprinkle with the reserved flour mixture over the petals and dust off excess flour.
  7. Dip in Egg Wash: Transfer the onion cut side down into the egg mixture. Spread petals gently to coat thoroughly, letting excess drip back.
  8. Second Flour Coating: Return the onion cut side up into the flour mixture, spreading the petals and sprinkling the reserved flour mixture section by section to ensure full coverage on all sides.
  9. Prepare for Frying: Line a baking sheet with a wire rack topped with paper towels to drain excess oil after frying.
  10. Fry the Onion: Carefully lower the breaded onion cut side up into the hot oil, maintaining the temperature between 360 to 365ºF. Fry until deep golden brown on the bottom, about 4 minutes. Flip and fry the other side until golden and knife-tender, 3 to 4 minutes more.
  11. Drain and Season: Lift the onion out of the oil cut side down with a spider or slotted spoon. Let excess oil drip back into the pot, then place cut side up on paper towels. Sprinkle with the remaining 1/4 teaspoon kosher salt.
  12. Rest and Serve: Allow the onion to cool for about 5 minutes before serving with your favorite dipping sauce if desired.

Notes

  • Use a sharp chef’s knife for clean cuts to avoid ripping onion petals.
  • Keep the root intact to hold the onion sections together during frying.
  • Maintain oil temperature carefully to ensure even frying and prevent sogginess.
  • Canola, peanut, or corn oil are recommended for high-heat frying due to their high smoke points.
  • Buttermilk adds extra tang, but whole or 2% milk works fine as a substitute.
  • Use a wire rack over paper towels for better draining of excess oil and crispiness retention.
  • Double coating with flour and egg wash ensures crispy and flavorful breading.

Nutrition

  • Serving Size: 1 serving (1/4 of onion)
  • Calories: 450 kcal
  • Sugar: 6 g
  • Sodium: 750 mg
  • Fat: 30 g
  • Saturated Fat: 5 g
  • Unsaturated Fat: 22 g
  • Trans Fat: 0 g
  • Carbohydrates: 37 g
  • Fiber: 4 g
  • Protein: 6 g
  • Cholesterol: 115 mg