Why You’ll Love This Recipe
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Creamy & Tangy: The combination of mayonnaise, sour cream, and horseradish creates a rich and flavorful base.
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Versatile: Ideal for dipping fried foods, sandwiches, burgers, and even wraps.
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Easy to Make: Simple ingredients and no cooking required.
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Spicy Kick: With cayenne and horseradish, it has just the right amount of heat without overpowering.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
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½ cup mayonnaise
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¼ cup sour cream
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1 tbsp ketchup
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1 tbsp prepared horseradish
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½ tsp cayenne pepper
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½ tsp paprika
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1 tsp dried oregano
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½ tsp garlic powder
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Salt and pepper to taste
Directions
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Combine Ingredients: In a medium bowl, whisk together mayonnaise, sour cream, ketchup, horseradish, cayenne pepper, paprika, oregano, garlic powder, salt, and pepper.
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Mix Well: Stir until the sauce is smooth and well-combined.
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Chill: Refrigerate for at least 30 minutes before serving to allow the flavors to meld together.
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Serve: Serve as a dip for onion rings, fries, or a topping for burgers.
Servings and Timing
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Servings: About 1 cup
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Prep Time: 10 minutes
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Chill Time: 30 minutes
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Total Time: 40 minutes
Variations
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Spicier: Add extra cayenne pepper or chili powder for more heat.
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Milder: Reduce or omit the horseradish for a milder sauce.
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Dairy-Free: Use dairy-free mayo and sour cream for a dairy-free version.
Storage/Reheating
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Storage: Store in an airtight container in the fridge for up to 1 week.
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No Reheating Needed: Serve chilled.
FAQs
1. Can I make this sauce ahead of time?
Yes! It actually gets better after chilling for a few hours or overnight.
2. What can I serve this sauce with?
This sauce is great for onion rings, fries, burgers, and even grilled chicken.
3. How do I make this sauce thicker?
Add a bit more sour cream or reduce the amount of mayonnaise.
4. Can I use fresh horseradish instead of prepared?
Fresh horseradish is much spicier, so use it sparingly or substitute with mustard for a milder option.
5. How long will this sauce keep?
It will stay fresh in the refrigerator for up to one week.
Conclusion
This Blooming Onion Sauce is a fantastic copycat recipe that brings the signature Outback flavor into your home. It’s creamy, tangy, and packed with flavor, making it the perfect dip for your favorite appetizers or sandwiches. Try it today!

Blooming Onion Sauce
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- Author: Chef Sara
- Total Time: 40 minutes
- Yield: About 1 cup
- Diet: Vegetarian
Description
Blooming Onion Sauce (Outback Copycat) is a creamy, tangy, and slightly spicy dipping sauce perfect for onion rings, fries, and burgers. This easy-to-make recipe balances smoky paprika, cayenne, and horseradish for the perfect blend of flavors. Ideal for a homemade take on the Outback favorite, it’s a versatile sauce that adds a zesty kick to any meal.
Ingredients
½ cup mayonnaise
¼ cup sour cream
1 tbsp ketchup
1 tbsp prepared horseradish
½ tsp cayenne pepper
½ tsp paprika
1 tsp dried oregano
½ tsp garlic powder
Salt and pepper to taste
Instructions
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In a medium bowl, whisk together mayonnaise, sour cream, ketchup, horseradish, cayenne pepper, paprika, oregano, garlic powder, salt, and pepper.
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Stir until smooth and well-combined.
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Refrigerate for at least 30 minutes to allow the flavors to meld together.
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Serve as a dip for onion rings, fries, or as a topping for burgers.
Notes
Adjust the heat by adding more cayenne pepper for a spicier sauce or reducing the horseradish for a milder version.
For a dairy-free version, use dairy-free mayo and sour cream.
For a thicker sauce, add extra sour cream or reduce the amount of mayonnaise.
Fresh horseradish can be used, but use it sparingly as it is much spicier.
- Prep Time: 10 minutes
- Category: Condiment, Dipping Sauce
- Method: No-Bake
- Cuisine: American