Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   2      teaspoons     bacon grease
   1      large         onion -- finely chopped
   2      cloves        garlic -- minced
   1      cup           ketchup
   1      cup           chili sauce
     1/2  cup           packed light brown sugar
     1/2  cup           lemon juice
   2      tablespoons   Worcestershire sauce
                        hot pepper sauce -- to taste

Preparation:

In a large saucepan, heat the bacon grease over low heat. Add the onion, garlic and cook, stirring, until the onion is softened, about 5 minutes. Stir in the catsup, chili sauce, sugar, lemon juice, and Worcestershire. Bring to a simmer and cook, stirring often to prevent sticking, until slightly thickened, about 45 minutes Season with hot sauce to taste.