Add onion and sauté until tender (about 10 minutes).
Mix in tomato sauce, vinegar, mustard, molasses, Worcestershire sauce, brown sugar, and cayenne.
Heat to boiling over high heat, stirring frequently.
Reduce heat and simmer, uncovered, 30 to 45 minutes or until the sauce thickens slightly.
Reserve 1½ cups of the mixture to serve as a sauce.
Grilling Chicken:
Place chicken on the grill over medium heat.
Cook for 25 to 30 minutes.
Turn and baste generously with sauce.
Cook for an additional 25 minutes, turning pieces often and basting frequently.
Doneness Test:
Pierce chicken with a fork.
The juices will run clear when the chicken is fully cooked.
Notes / Tips / Wine Advice:
Wine Advice:
Pair this classic barbecue chicken with a chilled, fruity white wine such as a Riesling or a light-bodied red wine like Pinot Noir. The refreshing acidity will complement the smoky flavors of the chicken. Enjoy this quintessential American dish!