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    Home » Dips

    How to Make Outback Bloomin' Onion Sauce Copycat Recipe

    Published: May 4, 2025 by Chahinez · This post may contain affiliate links · Leave a Comment

    Jump to Recipe

    This is the Tastiest Outback Bloomin’ Onion Sauce copycat recipe you’ll ever try! It’s rich, creamy, mildly spicy, and so addictive, just like how you remember it, maybe even better. Serve it with a bloomin onion, fries, or even chicken tenders!

    Flat lay shot of a small bowl of a copycat Outback Bloomin' Onion Sauce recipe placed in the middle of golden brown Bloomin' Onion.

    Whenever we dine in at an Outback Steakhouse, it’s imperative that we get the Bloomin’ Onion every single time. Although the deep-fried golden brown onion is the star, there’s just something addictive about the Blooming Onion sauce too. The latter just always gets me as excited as the actual appetizer itself.

    My copycat version was born out of pure obsession. During one of our Outback dinners, I thought, “I can definitely make this at home.”. So, after countless tries (and taste tests!), I have finally nailed it. And now, I want to share this with you, so you can also enjoy that familiar creamy, tangy, and bold-flavored dip in the comfort of your own home.

    An Easy Dip Ready in Minutes

    What I love the most about this recipe is how easy it is to make. We’re talking less than 10 minutes of hands-on time. You don’t need any special equipment to prepare this, and the best part is that you probably have the ingredients in your pantry already.

    This sauce goes with a Bloomin’ Onion fresh off the deep fryer and also pairs well with other dishes. Think French fries or sweet potato fries, sandwiches, and even grilled chicken. It’s that much of a flavor bomb of a sauce!

    This dip is my latest Outback Steakhouse copycat recipe. For salads, I have a copycat Blue Cheese Vinaigrette you might want to try. 

    Flat lay shot of the ingredients to make the outback Bloomin' Onion Sauce copycat recipe, all placed on a marble surface.

    Ingredients You'll Need for this Outback Copycat Bloomin' Onion Sauce Recipe

    Scroll down to the recipe card at the bottom of the page for the detailed ingredient measurements.

    • Mayonnaise: is that creamy base that will hold everything together. Make sure you use a good-quality mayonnaise for the best results!
    • Sour cream: adds that distinct smoothness and tang that balances the mayonnaise’s richness.
    • Ketchup: brings a touch of sweetness and acidity that rounds up the flavors.
    • Prepared Horseradish: gives that signature kick to this recipe! You can adjust the amount according to how spicy you want your dip.
    • Paprika: is smoky and warm, and it gives this tasty dip that classic reddish hue.
    • Garlic and Onion Powder: are a must to achieve that deep, savory flavor. 
    • Cayenne Pepper: gives just the right amount of heat. Tone it down (or up!) however you want to! 
    • Kosher Salt and Black Pepper: is the duo that enhances the overall flavor of this Bloomin’ Onion sauce.
    Flat lay shot of a wooden spoon that was dipped on some sauce in a jar beneath it.

    How to Make The Tastiest Outback Copycat Bloomin' Onion Sauce

    Make sure to scroll down to the recipe card at the end of this post for the full recipe and step-by-step instructions to make this Outback Copycat Bloomin’ Onion Sauce!

    1. Whisk the base ingredients: In a medium bowl, combine mayonnaise, sour cream, ketchup and the fresh horseradish. Whisk until everything until the mixture is smooth and creamy.
    2. Add the seasonings: Next, take your dry ingredients such as paprika, garlic powder, onion powder, cayenne, salt and black pepper, and dried oregano. Stir everything together until well combined.
    3. Chill: Cover the bowl with plastic wrap and refrigerate for at least 30 minutes. Let those flavors meld and deepen. Trust me, your taste buds will thank you for it!
    4. Serve and enjoy: Once your sauce has chilled, dip away!  Not only does this work as an onion dipping sauce, you can also enjoy this with fries, chicken tenders, and even tater tots!
    Flat lay shot of a glass bowl with the mixed ingredients placed on a marble surface.
    Flat lay shot of a glass bowl with the mixed ingredients, covered with plastic wrap and placed on a marble surface.
    Flat lay shot of a glass bowl with dip in it.

    Tips and Tricks to Make This Sauce Even Better

    • The chill time matters. Don’t skip the refrigeration step. This is the best way to effectively give the flavors time to come together for that signature taste.
    • Adjust the heat according to your preference. Love your sauce spicy? Add a little more cayenne or even a dash of hot sauce. Not too keen on the spice? Lessen the amount of horseradish and cayenne until you reach just the right amount for you.
    • Double the amount. This tasty sauce is so good, it disappears fast. Make a double batch and keep it in the fridge, it lasts up to 5 days!
    • Use good mayo. Don’t skimp on the flavor. The flavors will shine through with a rich and creamy mayonnaise.
    Closeup shot of a small bowl of the Bloomin' Onion sauce nestled in the center of crispy outback steakhouse Bloomin' Onion sauce copycat recipe

    Why You Need to Make The Tastiest Outback Copycat Bloomin' Onion Sauce

    Once you’ve had The Tastiest Outback Copycat Bloomin’ Onion Sauce, you’ll wonder why you didn’t make it sooner. It takes minutes to make, with pantry ingredients that are accessible, and the result is so versatile. This will be your favorite dipping sauce for any occasion, whether you’re throwing a party, enjoying a family movie night, or just want to indulge. The best part is you don’t have to drive to your local Outback Steakhouse to enjoy this with those mouth-watering onion petals from their Bloomin’ Onion (good news, you can make this at home too!).

    A glass bowl with dip in it. The glass bowl is placed on a marble surface.

    Frequently Asked Questions (FAQ's)

    Can I make this sauce ahead of time?

    Absolutely! In fact, it tastes way better after chilling overnight. So if you’re entertaining, make this sauce the night before!

    How long does this last in the fridge?

    If stored properly in an airtight container like a mason jar, this Outback Copycat Bloomin’ Onion Sauce will stay fresh for up to 5 days.

    A spoonful of the outback Bloomin' Onion Sauce copycat recipe being taken out from a glass jar.
    Can I make my sauce dairy-free?

    Yes, you can. Simply substitute the regular sour cream with a dairy-free alternative. Just make sure to check the consistency and adjust the amount used if needed.

    What can I substitute for horseradish?

    You can use a bit of Dijon mustard or wasabi. The flavor will be a little different, though. I don’t recommend using horseradish sauce because there’s already a creamy base with the mayonnaise.

    Closeup shot of the finished Copycat outback Bloomin' Onion Sauce copycat recipe
    Can I use just light mayonnaise or pure sour cream as the base?

    You can, but those might slightly change the texture and richness. It’s still delicious though!

    Can I freeze this sauce?

    I don’t recommend freezing this. Mayo-based sauce separates when thawed after being frozen. This is best enjoyed fresh.

    A wooden spoon with the outback Bloomin' Onion sauce copycat recipe in its tip being pulled up from a jar.

    The Tastiest Outback Copycat Bloomin' Onion Sauce

    A single onion petal dipped into the signature outback Bloomin' Onion sauce copycat recipe in a small bowl in the middle of the entire fried whole onion.

    Outback Bloomin' Onion Sauce Copycat Recipe

    This is the Tastiest Outback Copycat Bloomin’ Onion Sauce you’ll ever try! It’s rich, creamy, mildly spicy, and so addictive, just like how you remember it, maybe even better.
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    Print Recipe Pin Recipe
    Prep Time 5 minutes mins
    Total Time 5 minutes mins
    Course Appetizer
    Cuisine American, austrailian
    Servings 6 servings
    Calories 139 kcal

    Ingredients
      

    • ½ cup mayonnaise
    • 1/4 cup sourcream
    • 2 & 1/2 tablespoons ketchup
    • 2 tablespoons prepared horse radish
    • 3/4 teaspoon paprika
    • 3/4 teaspoon garlic powder
    • 1/2 teaspoon onion powder
    • 1/4 teaspoon cayenne pepper adjust for spice level
    • 1/2 teaspoon kosher salt adjust to taste
    • 1/2 teaspoon black pepper
    • 1/4 teaspoon dried oregano
    Get Recipe Ingredients

    Instructions
     

    • In a bowl, whisk together mayo, ketchup, sour cream and horseradish until smooth.
      ½ cup mayonnaise, 2 & 1/2 tablespoons ketchup, 2 tablespoons prepared horse radish, 1/4 cup sourcream
    • Add paprika, garlic powder, onion powder, cayenne, salt, dried oregano, and black pepper, stir to combine.
      3/4 teaspoon paprika, 3/4 teaspoon garlic powder, 1/2 teaspoon onion powder, 1/4 teaspoon cayenne pepper, 1/2 teaspoon kosher salt, 1/2 teaspoon black pepper, 1/4 teaspoon dried oregano
    • Cover and refrigerate for at least 30 minutes to let the flavors meld. Serve with your Bloomin' Onion and enjoy!

    Nutrition

    Calories: 139kcalCarbohydrates: 3gProtein: 0.4gFat: 14gSaturated Fat: 2gPolyunsaturated Fat: 8gMonounsaturated Fat: 3gTrans Fat: 0.03gCholesterol: 8mgSodium: 391mgPotassium: 49mgFiber: 0.4gSugar: 2gVitamin A: 203IUVitamin C: 2mgCalcium: 8mgIron: 0.2mg
    Keyword outback bloomin onion sauce, outback Bloomin' Onion sauce copycat recipe
    Tried this recipe?Let us know how it was!

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    Chahinez

    Hi! I'm Chahinez and I love recreating recipes that I've had at restaurants, bakeries, and just when I'm out and about. I hope you enjoy making these easy copycat recipes as much as I did creating them!

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