Grilled BBQ Ribs

Grilled BBQ Ribs

4 lbs baby back ribs
3 garlic cloves, minced (I used the already minced kind)
1 tbsp sugar
1 tbsp paprika
2 tsp salt
2 tsp pepper
2 tsp chili powder
2 tsp cumin
For BBQ sauce:
1 small onion, finely diced
2 tbsp butter
1 c ketchup
1/4 c brown sugar
3 tbsp lemon juice
3 tbsp Worcestershire sauce
2 tbsp cider vinegar
1 1/2 tsp ground mustard
1 tsp celery salt
1/8 tsp cayenne pepper
Rub ribs with garlic; place in a shallow roasting pan.  Cover and bake at 325 degrees for 2 hours.  Cool slightly.  Combine first 6 seasonings and rub over ribs.  Refrigerate covered overnight (or at least 8 hours).
In a small saucepan, saute onion and butter.  Stir in remaining ingredients and bring to a boil.  Reduce heat and cook 10 minutes or until thick.  Remove from heat, reserve 3/4 cup sauce.
Grill ribs, covered, over medium heat for 12 minutes, turning and basting with remaining sauce.