Mcdonald's Big Mac Sauce ("Special Sauce")
Makes about 3/4 cup
1/2 c mayonnaise
2 T French dressing
4 t sweet pickle relish
1 T white onion,Finely Minced
1 t white vinegar
1 t sugar
1/8 t salt
Combine all of the ingredients in a small bowl. Stir well.
Place sauce in a covered container and refrigerate for several hours, or overnight, so that the flavors blend.
Stir the sauce a couple of times as it chills.