Combine Knorr® Chicken flavor Bouillon cube and chili powder in small bowl; stir in oil. Rub ribs with Bouillon mixture, then arrange in shallow roasting pan. Cover with aluminum foil and bake until tender, about 2-1/2 hours.
Meanwhile, combine apricot preserves, ketchup, Hellmann's® or Best Foods® Real Mayonnaise and vinegar in small bowl; set aside.
Grill or broil ribs, turning and brushing with Mayonnaise mixture frequently, until caramelized.