Peach Preserves

2 quarts peeled sliced peaches
6 cups sugar

Add the peaches and sugar in a large shallow glass container; cover and keep in a cool place for 12-18 hours.
Transfer peach mixture to a large pot; bring to a boil slowly; stirring often.
Boil gently until peaches become transparent and the syrup thickens (about 1 1/2 to 2 hours), stirring often to keep from sticking.
Skim off foam with a metal spoon.
Immediately ladle preserves into hot sterilzed jars; leave 1/4 inch headspace.
Cover with lids and screw on the bands tightly.
Process in boiling water bath for 15 minutes.