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Secret Sauce & Quick-Pickled Onions


Source: Tasting Table


For the Secret Sauce: 

  • ⅓ cup mayonnaise
  • 1 tablespoon Dijon mustard
  • 1 tablespoon ketchup
  • 1 tablespoon finely chopped bread-and-butter pickles or cornichons
  • ⅛ teaspoon cayenne pepper
  • ⅛ teaspoon sweet paprika or smoked

For the Quick-Pickled Onions

  • ½ red onion, thinly sliced lengthwise
  • 1 tablespoon red wine vinegar
  • Salt


  1. To make the secret sauce: In a small mixing bowl, combine all ingredients and stir until blended. Put the sauce in the refrigerator until ready to use.
  2. To make the quick-pickled onions: In a small mixing bowl, combine the onions and vinegar. Season with salt and allow the onions to macerate until they have softened, about 15 minutes. Set aside until ready to use.
  • Prep Time: 5 minutes
  • Category: Condiment
  • Cuisine: American

Keywords: secret sauce, burger, condiments