Hot Pepper Jelly

Cut the bell peppers into 1-inch pieces and in a food processor chop them vety fine. Transfer the chopped peppers to a deep kettle, add the sugar, the vinegar, and the red pepper flakes, and bring the mixture to a boil, stirring until the sugar is dissolved. Stir in the pectin and boil the mixture over moderately high heat, stirring, until it reaches the jelly stage (222 °F. on a candy thermometer). Transfer the jelly to sterilizes Mason-type jars (sterilizing procedure below), filling the jars to within 1/4 inch of the tops, wipe the rims with a dampened towel, and seal the jars. The jelly keeps, sealed, in a cool dark place indefinitely. Serve the jelly as a condiment with grilled meats or with cream cheese on crackers.