Squash Pickles
["8 c. thinly sliced squash", "2 c. thinly sliced onions", "3 c. sugar", "2 c. white vinegar", "2 tsp. celery seed", "2 tsp. mustard seed"]
["Combine squash and onions in pan.", "Sprinkle with salt; let stand 1 hour, then drain (do not rinse).", "Mix other ingredients in pan.", "Bring to a hard boil.", "Add squash and onion; boil 15 to 20 minutes.", "Pack in jars.", "Seal jars and process in hot bath for 10 minutes.", "Yields 3 pints."]
["onions", "sugar", "white vinegar", "celery"]