Shack Sauce

1/2 cup (120ml) mayonnaise
1 tablespoon (15ml) ketchup
1 tablespoon (15ml) yellow mustard
4 slices kosher dill pickle, finely chopped
1/4 teaspoon garlic powder
1/4 teaspoon paprika
Pinch cayenne pepper

Combine all ingredients in a countertop blender jar and blend on high until smooth, scraping down sides of blender with rubber spatula as necessary, 30 seconds to 1 minute. Transfer sauce to an airtight container and refrigerate until ready to use (sauce can be refrigerated for up to 5 days).

Source: Shack Sauce Recipe