Not-So-Secret Sauce

Plain old ketchup can’t hold a candle to our not-so-secret sauce. This amazing condiment elevates everything from French fries and onion rings to burgers and fried chicken sandwiches.
Ingredients
- 1/2 cup (4 oz./125 g) ketchup
- 1/2 cup (4 fl. oz./125 ml) mayonnaise
- 2 Tbs. yellow mustard
- 2 Tbs. barbecue sauce
- Kosher salt
Directions
In a bowl, stir together the ketchup, mayonnaise, mustard and barbecue sauce. Season with 1/2 tsp. salt, plus more if desired. The sauce can be stored in an airtight container in the refrigerator for up to 1 week. Makes about 1 1/4 cups (10 fl. oz./310 ml).
Williams Sonoma Test Kitchen