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This copycat Outback Blooming Onion Sauce is creamy with a little kick, bringing you your favorite flavors from the classic steakhouse. Whip it up as an appetizer or delicious snack for dipping all the things or spreading on burgers or sandwiches!

This dip was created for the famous Blooming Onion and if you know, you know. But you can actually make it just as delicious in your own kitchen and pair it with these Crispy Fried Onion Strings, Sweet Potato Fries, or even these Oven Roasted Potato Wedges.

Blooming onion sauce in a small mason jar with sweet potato fries

Can we all agree that the Blooming Onion from Outback Steakhouse is one of the best recipes out there when it comes to appetizers and finger foods? I mean, fried onions are already delicious, but then to pair them with the most delicious sauce that you can continue to eat with your entree?

Let’s just say this is a must-make sauce recipe that everyone is going to love. Keep this recipe handy to enjoy whenever you’d like, and most importantly, in your own kitchen.

Why this recipe works

  • You can serve it as an appetizer or with your main dish or both. You can even whip up a large batch and just have it ready in the fridge as a go-to condiment and be extra loved for it.
  • The ingredients are so simple that you might even have everything on hand already and it takes no time at all. This is definitely a recipe you’ll want to keep close by for any season.
  • It’s a one-bowl recipe for easy prep and clean-up afterwards.
A side of blooming onion sauce served in a small mason jar on a plate

What You’ll Need

  • Mayonnaise: I really recommend using real mayo for the best taste and creamy results. You might be able to get away with swapping out half of the mayo for Greek yogurt for a healthier version, but I haven’t tried it yet.
  • Creamy prepared horseradish: Horseradish give this sauce that delicious kick that we all love.
  • Spices: The spices you’ll use are smoked paprika, salt, garlic powder, dried oregano, black pepper, and cayenne.
Ingredients for blooming onion sauce in a large bowl

How to Make Blooming Onion Sauce

Combine all of the ingredients in a large bowl and whisk well. Keep refrigerated until ready to serve.

It really is just that easy!

Blooming Onion Sauce mixed together in a large bowl with a whisk.

Blooming Onion Sauce FAQ

How to store leftover Blooming Onion Sauce?

Be sure to store this sauce in an airtight container in the fridge and use it within 2 weeks.

Can I adjust the spiciness of the sauce?

Yes! You can start with a smaller amount of horseradish and increase per your preference. You can also leave out the cayenne if you prefer.

Recipes You’ll Love To Serve With Blooming Onion Sauce

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Outback Bloomin' Onion Sauce

This copycat Outback Blooming Onion Sauce is creamy with a little kick, bringing you your favorite flavors from the classic steakhouse. Whip it up as an appetizer or delicious snack for dipping all the things or spreading on burgers or sandwiches!
5 from 1 vote
Print Pin Rate
Course: Spreads & Sauces
Cuisine: American
Prep Time: 3 minutes
Total Time: 3 minutes
Servings: 8 servings
Calories: 99kcal
Author: Amy Nash

Ingredients

  • 1/2 cup mayonnaise
  • 2 Tablespoons creamy prepared horseradish
  • 2 teaspoons ketchup
  • 1/4 teaspoon smoked paprika
  • 1/4 teaspoon salt
  • 1/8 teaspoon garlic powder
  • 1/8 teaspoon dried oregano
  • dash of black pepper
  • dash of cayenne pepper

Instructions

  • Combine all of the ingredients in a large bowl and whisk well. Keep refrigerated until ready to serve.

Notes

  • This sauce will keep for at least 1 week in the fridge and is great served with sweet potato fries (my personal favorite), a homemade bloomin' onion, tater tots, and more.

Nutrition

Calories: 99kcal | Carbohydrates: 1g | Protein: 1g | Fat: 11g | Saturated Fat: 2g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 6mg | Sodium: 189mg | Potassium: 18mg | Fiber: 1g | Sugar: 1g | Vitamin A: 47IU | Vitamin C: 1mg | Calcium: 4mg | Iron: 1mg
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Recipe slightly adapted from Brown Eyed Baker.