Blooming Onion Sauce Recipe

If you love the creamy, tangy dipping sauce served alongside a classic :contentReference[oaicite:0]{index=0}, this homemade Blooming Onion Sauce Recipe is exactly what your kitchen needs. Rich, velvety, and packed with bold savory flavor, this easy copycat sauce delivers restaurant-style results in just minutes. With a silky texture and the perfect balance of spice, sweetness, and tang, it pairs beautifully with fried onions, fries, burgers, and sandwiches. Best of all, it’s beginner-friendly and takes only 10 minutes from start to finish.

Ingredients

For the Sauce

• 1/2 cup mayonnaise
• 2 tablespoons sour cream
• 1 tablespoon ketchup
• 1 teaspoon prepared horseradish
• 1/2 teaspoon paprika
• 1/4 teaspoon garlic powder
• 1/4 teaspoon onion powder
• 1/8 teaspoon cayenne pepper
• 1 teaspoon white vinegar

How to Make Blooming Onion Sauce Recipe

• Prepare your mixing bowl: Place a medium bowl on your work surface and gather all ingredients so everything is ready before mixing.
• Combine the creamy base: Add the mayonnaise, sour cream, ketchup, and prepared horseradish to the bowl. Stir until mostly blended.
• Add the seasoning: Sprinkle in the paprika, garlic powder, onion powder, cayenne pepper, and white vinegar.
• Whisk until smooth: Whisk for 1 to 2 minutes until the sauce becomes silky, smooth, and evenly colored.
• Chill the sauce: Cover the bowl and refrigerate for at least 30 minutes. This allows the flavors to develop and gives the sauce its classic restaurant taste.
• Serve and enjoy: Spoon into a serving bowl and serve cold alongside blooming onion, fries, chicken tenders, or burgers.

Tips for the Best Blooming Onion Sauce

How do I make the sauce thicker?

Use full-fat mayonnaise and chill the sauce for at least 30 minutes before serving for a thicker consistency.

Can I make it spicier?

Yes. Add an extra pinch of cayenne pepper or a few drops of hot sauce for more heat.

Why should I chill the sauce first?

Resting the sauce helps the flavors blend together, making it taste smoother and more balanced.

Can I use Greek yogurt instead of sour cream?

Yes, plain Greek yogurt works well and gives a slightly tangier flavor.

Serving Suggestions

• Serve with a hot blooming onion
• Use as a dip for French fries
• Spread on burgers or sandwiches
• Pair with fried chicken tenders
• Drizzle over roasted potatoes

Storage

Room Temperature

Do not leave this sauce out for more than 2 hours because it contains dairy and mayonnaise.

Refrigerator

Store in an airtight container in the refrigerator for up to 5 days. Stir before serving.

Freezing

Freezing is not recommended, as mayonnaise-based sauces can separate after thawing.

Nutrition

• Calories: 95 kcal
• Carbohydrates: 2g
• Protein: 1g
• Fat: 10g
• Saturated Fat: 2g
• Sodium: 180mg

Nutrition values are estimates and may vary depending on ingredients used.

FAQs

Blooming Onion Sauce Recipe

Recipe by Milli RoseCourse: SauceCuisine: AmericanDifficulty: Easy

Servings

8

servings

Prep time

10

minutes

Cooking timeminutes

Total time

10

minutes

Calories

95

kcal

Creamy, tangy, and slightly spicy blooming onion sauce made in minutes with simple pantry ingredients. Perfect for blooming onions, fries, burgers, and more.

Ingredients

• 1/2 cup mayonnaise

• 2 tablespoons sour cream

• 1 tablespoon ketchup

• 1 teaspoon prepared horseradish

• 1/2 teaspoon paprika

• 1/4 teaspoon garlic powder

• 1/4 teaspoon onion powder

• 1/8 teaspoon cayenne pepper

• 1 teaspoon white vinegar

Directions

• Add mayonnaise, sour cream, ketchup, and horseradish to a medium mixing bowl.
• Add paprika, garlic powder, onion powder, cayenne pepper, and white vinegar.
• Whisk thoroughly until smooth, creamy, and fully combined.
• Taste and adjust seasoning if needed.
• Cover and refrigerate for 30 minutes before serving for best flavor.

Notes

• Use full-fat mayonnaise for the creamiest texture.
• Adjust cayenne for more or less heat.
• Best served chilled.