Turn the burner on low to medium heat and use tongs to rotate the pepper over the flame until the chili pepper skin is charred on all sides. Rinse the pepper in cold water to remove the skin.
Oven
Preheat your oven on a broil setting and place the pepper on a piece of foil. Roast the pepper in the oven for 5 minutes on each side, or until the skin is charred on all sides. Rinse the pepper in cold water to remove the skin.