Maple Glazed Ribs

3 pounds pork baby back ribs
3/4 cup maple syrup
2 tablespoons packed brown sugar
2 tablespoons ketchup
1 tablespoon cider vinegar
1 tablespoon Worcestershire sauce
1/2 teaspoon salt
1/2 teaspoon mustard powder

Place ribs in a large pot, and cover with water. Simmer covered for about 1 hour. Drain when meat is tender, and place in a shallow dish.

In a small saucepan, combine maple syrup, brown sugar, ketchup, vinegar, Worcestershire sauce, salt and mustard powder. Bring to a boil. Pour over ribs, and marinate in the refrigerator for about 2 hours.

Prepare grill for cooking with indirect heat. Remove ribs from glaze. In a small saucepan, bring marinade to a boil, and cook for several minutes.

Transfer ribs to grill. Cook over medium heat for about 20 minutes, or until tender and glazed; baste with marinating liquid, and turn occasionally.