1 gal. of coarsely ground zucchini
46 oz. can unsweetened pineapple juice
3 c. sugar
1 oz. pineapple flavoring (opt.)
1 1/2 c. lemon juice

Combine and simmer 30 minutes. Fill pint jars and process at 8 pounds pressure for 10 minutes. Use as a substitute for canned crushed pineapple.