Ingredients
1/2
cup ketchup
3
tablespoons white vinegar
2
tablespoons chopped onion
1
tablespoon Worcestershire sauce
2
teaspoons packed brown sugar
1/4
teaspoon ground mustard
1
clove garlic, finely chopped
1
lb thinly sliced cooked roast beef, cut into 1-inch strips (3 cups)
6
burger buns, split
Preparation
In 1-quart saucepan, heat all sauce ingredients to boiling over medium heat, stirring constantly; reduce heat. Simmer uncovered 10 minutes, stirring occasionally.
Stir beef into sauce. Cover and simmer about 5 minutes or until beef is hot. Fill buns with beef mixture.