A recreation of this iconic sauce from Jack in the Box that was used on the Sourdough Jack, Chicken Supreme, Ultimate Cheeseburger (pre-2002) and Hot Ham and Cheese.
Cuisine American
Keyword jack in the box, mayo, onion, sauce
Servings 4
Ingredients
1.5tspwhite vinegar
1tspgranulated sugaror corn syrup
1/4tsponion powder
1/8tsp dry mustard powderor yellow mustard
1pinchxanthan gumoptional
2tbspmayonnaise
Instructions
Mix the vinegar, sugar, onion and mustard until the sugar dissolves
Add a pinch of xanthan gum while mixing and allow to sit until it thickens slightly
Add mayonnaise. You can use it immediately, but it will get better as it sits. Allow at least an hour for the best flavor.
Notes
This should make enough sauce for about four burgers or sandwiches.