Sweet and Spicy Pepper Relish

Step 1
Wearing rubber or latex gloves, trim tops off chiles. Pulse chiles, bell peppers, and onion in a food processor, working in batches, until finely chopped, about 1 minute per batch. Transfer to a nonreactive 3-quart pot.

Step 2
Stir sugar, vinegar, and pickling salt into chile mixture; bring to a boil. Reduce heat to medium and simmer, stirring more frequently toward the end of cooking to prevent scorching, until thickened, 20 to 30 minutes.

Step 3
Ladle relish into wide-mouth, 1/2-pint jars, leaving 1/2 inch headspace. Wipe the rims clean with a damp paper towel. Let cool to room temperature, about 1 hour.

Step 4
Screw on the lids and store in the refrigerator for 2 to 3 weeks or the freezer for up to 6 months.