Simmered Barbecue Sauce

Ingredients:

1 cup tomato sauce
2 teaspoons chili powder
1/3 cup Worcestershire sauce
2 tablespoons fresh lemon juice
1/4 cup chopped onion
1 tablespoon brown sugar
2 cloves garlic -- peeled and minced
2 cups beef broth
2 tablespoons butter
1 tablespoon paprika
1 teaspoon dry mustard
1/4 cup white vinegar
1 cup beer
1/2 teaspoon Tabasco sauce
2 tablespoons brown sugar -- optional

Instructions:

Blend all ingredients in a saucepan and bring to a boil. Turn down the heat and simmer until reduced by half; stir occasionally. The sauce will probably take an hour or more to cook down.
Recipe source: "The Frugal Gourmet Cooks American"