How to Make It
Process peppers in a food processor 10 to 20 seconds, stopping once to scrape down sides. Combine peppers, vinegar, and sugar in a large Dutch oven. Bring to a boil over medium-high heat; boil 9 minutes. Reduce heat to low; simmer, uncovered, 5 minutes. Add liquid pectin to pepper mixture; return to a boil, and boil 1 minute. Reduce heat to low, and simmer 4 minutes. Remove from heat, and skim off foam with a metal spoon.
Pour hot jelly into hot, sterilized jars, filling to 1⁄4 inch from top; wipe jar rims. Cover at once with metal lids, and screw on bands. Process in boiling-water bath 5 minutes; cool. Makes 7 (1⁄2-pt.) jars.