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Oven-Baked Blooming Onion


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  • Author: herviobloggmail-com
  • Total Time: 60 minutes
  • Yield: 4 servings
  • Diet: Vegetarian

Description

A healthier and shareable take on the classic blooming onion, baked to perfection with crispy petals and a tangy dipping sauce.


Ingredients

  • 1 large yellow onion
  • 2 tablespoons olive oil (drizzle for browning)
  • 1/2 cup all-purpose flour
  • 1 teaspoon paprika
  • 1/2 teaspoon garlic powder
  • 1/4 teaspoon cayenne pepper (optional)
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/2 cup milk (dairy or unsweetened plant milk)
  • 1 large egg
  • For the dipping sauce:
  • 1/2 cup mayonnaise
  • 2 tablespoons ketchup
  • 1 tablespoon prepared horseradish
  • 1/2 teaspoon paprika
  • 1/4 teaspoon garlic powder
  • Pinch of cayenne pepper


Instructions

  1. Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
  2. Peel and trim about 1/2 inch from the top of the onion, leaving the root intact.
  3. Make 12-16 vertical cuts from top to root without cutting through the base.
  4. Gently separate the petals with fingers to open like a flower.
  5. In a shallow bowl, whisk flour, paprika, garlic powder, cayenne (if using), salt, and black pepper.
  6. In another bowl, whisk together milk and egg.
  7. Dip the onion in the milk-egg mixture, then dredge in the flour mix, ensuring even coating.
  8. Place onion on the prepared baking sheet, root-side down, and drizzle with olive oil.
  9. Bake for 30-40 minutes, checking for golden-brown petals and a tender core.
  10. Meanwhile, whisk together dipping sauce ingredients until smooth. Adjust seasoning as needed.
  11. Serve the blooming onion hot with the dipping sauce.

Notes

For gluten-free, use gluten-free flour. For vegan, replace the egg with aquafaba and use vegan mayo.

  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Appetizer
  • Method: Baking
  • Cuisine: American