Spicy Country Ribs - cooking recipe

Ingredients

1 small onion, finely chopped (1/2 cup)
1/2 cup ketchup
1/2 cup cider vinegar
1/4 cup brown sugar
1 tablespoon kosher salt
1 tablespoon Worcestershire sauce
1 teaspoon ground dried chipotle powder (www.penzeys.com is a good source)
1 teaspoon dried oregano
4 lbs country-style pork ribs

Preparation

Combine the onion, ketchup, vinegar, brown sugar, salt, Worcestershire, chili powder and oregano in a 4 - 6 quart slow cooker.
Stir in the ribs.
Cook on low heat for 6 hours, or on high for 3 1/2 hours.
Using tongs, remove the ribs from the cooker and arrange on a broiler pan.
Heat the broiler.
Pour the juices from the cooker into a bowl and place in the freezer for 10 minutes to hasten the separation of the fat.
Remove and discard the fat.
Pour the defatted juices into a saucepan; boil over high heat until reduced by half, about 15 minutes.
Broil the ribs about 6 inches from the heat until browned.
Serve with the remaining sauce on the side.