Gather Ingredients: Mayo, sugar-free added ketchup, yellow mustard, white vinegar (measure out all the sauce ingredients), shredded pickles, paprika, garlic powder and onion powder.
Mix the Base: Mix mayonnaise, ketchup and mustard in medium bowl until smooth.
Add Seasonings: Add the vinegar for tang, paprika, garlic powder, onion powder to give it a kick.
Incorporate Pickles: Blending in the chopped pickles give you some crunch and that classic Big Mac taste.
Adjust Flavour: Check the sauce for seasoning—vinegar, sweetener if needed, or more heat.
Chill the Sauce: Cover; refrigerate at least 30 minutes to allow flavors to combine.
Serve and Store: It is also great to serve over burgers, salads, grilled meats or keto fries. Keep the extra in an airtight jar for up to one week.