When I'm left with green tomatoes at the end of summer, I reach for this recipe. Friends and family are so happy to receive the sweet-sour relish that they often return the empty jar and ask for a refill! —Mary Gill, Florence, Oregon

Canning Altitude

The processing time listed is for altitudes of 1,000 feet or less. For altitudes up to 3,000 feet, add 5 minutes; 6,000 feet, add 10 minutes; 8,000 feet, add 15 minutes; 10,000 feet, add 20 minutes.