To make molasses barbecue sauce, combine chili sauce, vinegar, molasses, chili powder, chipotle en adobo and garlic in a small saucepan; bring to a boil. Reduce heat to low and simmer, stirring, until thickened, 2-3 minutes.
spray grill rack with nonstick spray and prepare grill. Place chicken
on grill and cook, turning occasionally, about 8 minutes.
Brush chicken with barbecue sauce. Cook, turning the chicken, until deeply glazed and cooked through, 5-6 minutes longer.
This sauce is great on either grilled or broiled chicken, beef, or pork. Two types of molasses are available in supermarkets: unsulphured light (mild) and blackstrap. For most cooking and baking, light molasses is used. You might like to serve these drumsticks with chopped romaine lettuce and shredded carrot tossed with a low-fat blue cheese dressing.
If you prefer, you can broil chicken 6 inches from heat until cooked through, about 6 minutes on each side. Then brush chicken with sauce and broil, turning occasionally, about 4 minutes longer.