Spicy Country Ribs

I put a link on my blog to this recipe before. We've eaten these alone with a fork and on rolls like a BBQ pork sandwich. Way good both ways.

1 small onion
1/2 cup ketchup
1/2 cup cider vinegar
1/4 cup brown sugar
1 tablespoon salt
1 tablespoon Worcestershire
1 teaspoon chili powder
1 teaspoon oregano
4 pounds country pork ribs

Combine all ingredients and cook in a heavy covered casserole at 325 for 3 hours. Remove ribs from casserole, arrange on a broiler pan. Heat broiler. Pour juices from casserole into a bowl and place in the freezer for 10 minutes. Skim fat off the top and pour juices into a saucepan; boil over high heat until reduced by half, about 15 minutes. Broil ribs about 6 inches from heat until browned. Serve with the sauce.