2 teaspoons celery seedsInstructions
Place the squash, onion, and bell peppers in a colander, sprinkle with salt, and let drain, covered, for about 1 hour at room temperature.
Do not rinse. Clean and
sterilize four 1-pint canning jars. Tightly pack the squash, onion, and peppers, alternating layers of vegetables in the hot jars, leaving about 1/2 inch of headspace to ensure a proper seal.
Combine the sugar, vinegar, mustard seeds, and celery seeds in a large pot over high
heat and bring to a boil, stirring until the sugar dissolves, for about 1 minute. Pour the hot liquid over the vegetables, maintaining the 1/2-inch head space. Cover with lid and ring.
Process in a hot water bath for 15 minutes. Remove and let cool to room temperature. Store in a cool, dark place for up to 6 months. Refrigerate after opening.