After you roast your own peppers you will never again buy them. Its cheaper to do it yourself and truthfully a lot more satisfying.
On a stove top, broil pepper 2 in. from the heat until skin blisters, about 5 minutes. With tongs, rotate pepper a quarter turn. Broil and rotate until all sides are blistered and blackened.
Immediately place pepper in a small bowl; cover and let stand for 20 minutes.
Peel off and discard charred skin. Remove stem and seeds; chop pepper
Bottle it, reserve in the refrigerator. Enjoy!