Best-Ever Piccalilli
["22 medium-sized green tomatoes", "6 green peppers", "1 pt. small onions, cut up", "6 sweet red peppers", "1 1/2 qt. vinegar", "3 1/2 c. white sugar", "1/4 c. salt", "1 1/2 tsp. ground allspice", "1 1/2 tsp. ground cinnamon", "4 tsp. celery seed", "1 1/2 tsp. mustard seed"]
["Quarter tomatoes and green and red peppers.", "Put through food chopper, using medium blade; drain.", "Place vegetables in large kettle.", "Add vinegar; boil 30 minutes, stirring frequently.", "Drain and discard juice."]
["tomatoes", "green peppers", "onions", "sweet red peppers", "vinegar", "white sugar", "salt", "ground allspice", "ground cinnamon", "celery"]