Outback Steakhouse Bloomin Onion

Outback Steakhouse’s Blooming Onion is one of the most legendary appetizers on chain restaurant menus. This enormous onion is sliced into petals, breaded and fried into a crispy, golden brown flower-shaped treat. It’s served alongside a unique creamy and tangy Blooming Onion dipping sauce that customers crave.


  • 1 cup mayonnaise
  • 1/2 cup sour cream
  • 1 tbsp white vinegar
  • 2 tsp French onion soup mix
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1⁄4 tsp paprika
  • Pinch of cayenne pepper


  1. In a small saucepan, combine all ingredients except mayonnaise over medium-low heat.
  2. Warm until heated through while stirring frequently, about 2 minutes. Do not allow to boil.
  3. Transfer sauce mixture to a medium bowl. Stir in the mayonnaise until fully blended and smooth.
  4. Taste and adjust seasoning if desired. More cayenne offers extra spice similar to Outback’s horseradish cranberry sauce.
  5. Transfer dipping sauce to a serving bowl and refrigerate until ready to serve alongside freshly fried Bloomin’ Onion.

And that’s all there is to whipping up this special sauce to complement the crispy fried onion! Adjust spice amounts to your personal taste preferences.