4 teaspoons prepared black olive paste (see Tip) or olive tapenade
To prepare onion jam: Heat 2 teaspoons oil in a 12-inch skillet (not nonstick) over medium heat. Add onions and sugar. Cover and cook, stirring occasionally, until the onions are soft and most of their liquid has evaporated, 10 to 20 minutes. Uncover and cook, stirring, until the onions turn deep golden, 10 to 20 minutes more. (Add 1 or 2 tablespoons water if the onions start to scorch.)
Add garlic and rosemary; cook, stirring, until fragrant, about 1 minute. Add ¼ cup vinegar and cook until most of the liquid has evaporated, about 3 minutes. Season with a pinch of salt, pepper and more vinegar, if desired. Set aside.
To prepare chicken: Prepare a charcoal fire or preheat a gas grill to medium-high.
Rub chicken breasts with 1½ teaspoons oil and season with ¼ teaspoon salt and pepper. Place rosemary sprigs on the grill and lay chicken breasts over them. Grill until the chicken is browned on the bottom, about 5 minutes. Turn, keeping the rosemary under the chicken, and grill until no trace of pink remains in the center, about 5 minutes more. Discard rosemary. Cut chicken breasts in half or slice crosswise. Serve the chicken with black olive paste (or tapenade) and the onion jam.
An equal amount of minced black olives can be substituted for the black olive paste.
Serving size: 3 oz. chicken, 1 tsp. olive paste & 3 Tbsp. onion jam
272 calories;10 g fat(2 g sat); 2 g fiber; 21 g carbohydrates; 24 g protein; 41 mcg folate; 63 mg cholesterol; 16 g sugars; 8 g added sugars; 23 IU vitamin A; 8 mg vitamin C; 47 mg calcium; 1 mg iron; 279 mg sodium; 391 mg potassium