1. Preheat broiler with rack 6 inches away from heat. Cut bell peppers in half lengthwise; discard seeds and membranes. Place pepper halves, skin sides up, on an aluminum foil-lined baking sheet. Broil, turning once, 15 minutes or until blackened and charred. Place peppers in a plastic storage bag, and seal. Let stand 15 minutes. Peel and discard skins; cut peppers into strips.
2. Combine peppers and remaining ingredients in a large bowl. Transfer to 2 (1-quart) jars, if desired. Will keep in refrigerator up to 3 weeks.