
Soak wood chips in a container of water for 15 to 30 minutes. Drain and set chips aside. Preheat grill to high then turn off one burner to allow for indirect grilling.
Cut off onion tops and peel. Hollow out onions leaving base intact. Finely chop pieces removed from onions.
In mixing bowl, combine chopped onions, diced peppers and kielbasa, brown sugar and barbecue sauce. Spoon onion/pepper mixture into the center of each whole onion. Top each onion with 1/2 tablespoon oil.
Arrange onions on grill grate away from fire. If using a charcoal grill, toss wood chips on coals. If using a gas grill, place wood chips in a foil pan or smoker box under the grate. Grill the onions 55 Minutes or until they are golden brown and tender.
