Pork Barbecue

1 (5 pound) pork loin
5 tablespoons brown sugar
1 tablespoon vinegar
2 tablespoons Worcestershire sauce
2 teaspoons salt
1 teaspoon pepper
1 teaspoon chili powder
1 (22 ounce) bottle catsup
1 onion
2 cups pork broth
1 cup water

Preheat oven to 350 degrees F. Place pork loin in a shallow baking pan, fat side up. Roast 3 hours, or until the temperature at the center of the pork is 160 degrees F. (If desired, roast a little longer to ensure it is very well done.)

Drain pork well. Chop into bite-size pieces with a large knife.

In a large saucepan or Dutch oven, combine remaining ingredients. Bring to a simmer over medium heat. Add chopped pork; simmer 10 to 15 minutes.