Southern Barbecued Beef Tips - cooking recipe

Ingredients

1 onion (chopped)
1 tablespoon butter
1 tablespoon prepared mustard
1 tablespoon Worcestershire sauce
1 tablespoon distilled white vinegar
2 tablespoons brown sugar
1/2 teaspoon salt
1/2 teaspoon ground black pepper
1/2 cup catsup
1 lb sirloin, cut into cubes or cooked rice

Preparation

In a large skillet over medium heat, saute onions in butter, when onions are tender add meat and cook until browned.
Mix in mustard, Worcestershire sauce, vinegar, salt, pepper, sugar and catsup.
Reduce heat, cover and simmer for 45 minutes, stirring occasionally.
Serve over rice.