- 3/4 cup white sugar
- 1/4 cup apple cider vinegar
- 1 tablespoon Worcestershire sauce
- 1 cup minced onion
- 1/3 cup ketchup
- 1 cup vegetable oil
- Stir together sugar, vinegar, Worcestershire sauce, onion, and ketchup until the sugar has dissolved. Whisk the vegetable oil into the onion mixture until incorporated. Cover and refrigerate 1 hour; shake well before using.