This recipe makes use of corn that was perhaps a little tough or otherwise not as fit for boiling and eating right off the cob.

5 cups corn, freshly cut from the cob and drained
5 cups fresh tomatoes, chopped
1 cup cucumber, unpeeled and chopped
1-1/2 cups onion, chopped
1 cup green pepper, chopped
3/4 cup sugar
2/3 cup cider vinegar
1 tsp. mustard seed
1 tsp. salt

Mix all the ingredients in a large pot and bring them to a hard boil. Remove the pot from the heat immediately. Ladle the relish into hot, sterilized pint jars, cover, and process in a boiling water bath for 10 minutes.