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Grilled Onion Blossoms

Grilled onion blossoms with a BBQ-style, blooming onion shape—charred edges and caramelized layers opened up at the grill. Whole sweet onions are scored into 8–12 wedges, seasoned, foil-grilled until tender, then finished with parsley and dipping sauce.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 4 servings
Course: Appetizer
Cuisine: American

Ingredients
  

Onion Blossoms
  • 4 large sweet onions Choose onions that are firm with tight, papery skins.
  • 0.25 cup olive oil Use to coat and help seasonings cling.
  • 2 tsp paprika
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 0.5 tsp cayenne pepper Add more or less based on heat preference.
  • salt and pepper to taste Season after brushing with oil; salt helps caramelize.
  • 1 ranch or comeback sauce for dipping Serve on the side for dipping.
  • 1 fresh parsley for garnish Adds color and a fresh finish right before serving.

Equipment

  • 1 sheet pan

Method
 

Prep the onions
  1. Cut off the top of each onion and peel away the papery skin, leaving the root intact.
  2. Make vertical cuts from the top down, stopping before the root, creating 8-12 wedges that remain attached.
  3. Gently separate the wedges to create a blossom shape.
Season and grill
  1. Brush the onions with olive oil and sprinkle with paprika, garlic powder, onion powder, cayenne pepper, salt, and pepper.
  2. Wrap each onion in foil and grill over medium heat for 25-30 minutes until tender and caramelized.
Finish and serve
  1. Unwrap the onions, garnish with fresh parsley, and serve with ranch or comeback sauce for dipping.

Notes

Pro tip: Keep the root intact so the wedges stay connected while grilling and open into a true blossom. Refrigerate leftovers in a sealed container for up to 3 days; reheat on the grill or in a hot oven until warmed through. Freezing isn’t recommended because the onion texture softens. For a dairy-free swap, choose a plant-based ranch or dairy-free comeback sauce for dipping.