Place peaches in boiling water a few at a time for 30 seconds. Remove from water, and peel. Remove pits. Mash peaches, and combine them and remaining ingredients in a large saucepan.
Bring to a boil over medium heat, stirring constantly. Lower to low-medium heat, stir frequently for about 45 minutes to 1 hour until thickened. Fill hot sterilized jars to within 1/4-inch from the top, and seal. Process in a water bath for 10 minutes. Remove, and set aside to cool.