Quoting That-Girl:" Isn't it thousand island dressing?"
This is what i found
Special sauce recipe:
The Recipe For Big Mac Special Sauce
From McMenu - McDonald's Do-It-Yourself Recipes:
1/4 cup KRAFT Miracle Whip
1/4 cup mayonnaise
2 tablespoons, heaping, WISHBONE deluxe French salad dressing (the orange stuff)
1/2 tablespoon HEINZ sweet relish
2 teaspoons, heaping, VLASIC dill pickle relish (Heinz dill relish also works)
1 teaspoon sugar
1 teaspoon dried, minced onion
1 teaspoon white vinegar
1 teaspoon ketchup
1/8 teaspoon salt
Mix everything very well in a small container. There better be no streaks! Microwave 25 seconds, and stir well again. Cover, and refrigerate at LEAST 1 hour before using. (to allow all of the flavors to "meld") Makes nearly 1 cup… enough for about 8 Big Macs.
THOUSAND ISLAND DRESSING
1 c. mayonnaise
1/3 c. ketchup
1/4 c. pickle relish
1 tbsp. chopped onion
1 hard cooked egg, chopped
Mix all ingredients together well. Cover and chill. Makes 2 cups.