Green Tomato Relish

Ingredients:
24 large green tomatoes
2 red bell peppers, halved and seeded
3 green bell peppers, halved and seeded
12 large onions
3 tbps celery seed
3 tbsp mustard seed
1 tbsp salt
5cups white sugar
2 cups cider vinegar
Directions:
In a grinder or food processor, coarsely grind tomatoes, pepper and onions. Line a large colander with cheesecloth place mixture and allow to drain for about an hour. In a large, non aluminum stock pat, combine tomato mixture, celery seed, mustard seed, salt, sugar, and vinegar. Bing to a boil and simmer, 5 minutes. Sterilize enough jars to hold relish. Pack relish into jars and screw on lids. Place in a rack in the bottom of the stockpot and fill halfway with boiling water. Lower jars into pot, the jars should be covered by 2 inches of water. Bring to boil and process for 30 min. Remove jars, cool and check seal.
Source: allrecipes.com/recipe/green-tomato-relish