Barbecued Pot Roast

1 (4 pound) beef roast
2 tablespoons fat
Salt and pepper
1 (8 ounce) can tomato sauce
3 medium onions, sliced
2 cloves garlic, minced
2 tablespoons brown sugar
1/2 teaspoon dry mustard
1/4 cup lemon juice
1/4 cup vinegar
1/4 cup catsup
1 tablespoon Worcestershire sauce
Dash of hot pepper sauce

Brown meat in fat. Sprinkle with salt and pepper. Add 1 cup water, tomato sauce, onion and garlic. Cover and simmer 2 hours. Add remaining ingredients, cover and continue cooking 1 1/2 hours longer, or until tender, adding more water if necessary. Remove meat and skim off excess fat from gravy.