Aunt Midges Sweet Zucchini Relish

(I got this in TN from Aunt Midge. It's good on hotdogs and hamburgers.)
9 half pints

10 c. grated zucchini (about 5 lbs.)

4 c. chopped onion

1/4 c. salt

5 c. sugar

2 1/4 c. white vinegar 5 % acidity.

1 Tblsp. celery seeds

1 Tblsp. ground turmeric

1 Tblsp. pepper

Combine first 3 ingredients in a large bowl. Cover and refrigerate 8 hours or overnight. Transfer zucchini to a colander. Rinse under cold running water. Drain well and press between layers of paper towels.

Combine zucchini mixture, sugar and remaining ingredients in a large pot. Bring to a boil over medium-high heat. Reduce heat to medium and simmer 30 minutes stirring often.

Pack hot mixture into hot jars filling to 1/2 inch from top. Remove air bubbles. Wipe jar rims. Cover at once with metal lids and screw on bands.

Process in boiling water bath for 15 minutes.