Makes 9 half-pints6 cups minced onions 3 cups minced red bell peppers 3 cups minced green bell peppers 1-1/2 cups sugar 6 cups white vinegar 2 Tbsp canning or pickling salt 1. Combine all ingredients in pot. Boil gently until mixture thickens and volume is reduced by half, about 30 minutes. 2 Fill hot, sterile jars with hot relish, leaving 1/2-inch headspace. Seal with hot lids and bands. 3. Process in boiling water bath 5 minutes. Or, store in refrigerator and use within one month.