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Ultimate Copycat Smash Burger Sauce Recipe

Close-up of creamy, orange-hued burger sauce speckled with herbs in a small white bowl.

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Make the best homemade burger sauce that tastes like your favorite fast-food special sauce. This creamy, tangy recipe is quick to prepare and perfect for burgers, fries, and sandwiches.

Ingredients

Scale
  • 1 cup mayonnaise
  • 1/4 cup ketchup
  • 2 tablespoons sweet pickle relish
  • 1 tablespoon yellow mustard
  • 1 teaspoon white vinegar
  • 1/2 teaspoon onion powder
  • 1/4 teaspoon garlic powder

Instructions

  1. Combine the mayonnaise, ketchup, sweet pickle relish, yellow mustard, white vinegar, onion powder, and garlic powder in a medium bowl.
  2. Whisk all ingredients together until the sauce is completely smooth and uniform in color.
  3. Cover the bowl and refrigerate the sauce for at least 30 minutes before serving. This chilling time allows the flavors to blend.
  4. Taste the sauce after chilling and adjust seasonings if needed.
  5. Use generously on your smash burgers, as a fry sauce, or on sandwiches.

Notes

  • For a Big Mac sauce copycat flavor, add 1/4 teaspoon of paprika.
  • If you prefer a tangier sauce, increase the white vinegar by 1/2 teaspoon.
  • This sauce keeps well in an airtight container in the refrigerator for up to one week.

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