Puree peaches in a food processor being careful not to make them to liquidy.
Measure puree and place in kettle that is not aluminum.
However much puree you have; add 1/2 that amount of brown sugar.(eg. If you have 12 cups of puree; add 6 cups of brown sugar.)
Add spices to taste. I use lots of nutmeg, a little cinnamon and a little ginger. But you could also use cloves or apple pie spice.
Boil stirring often to keep from sticking. Continue to cook until the mixture is thick enough to roll up on a spoon. This may take a while!!
Ladle into hot jars and process in boiling water bath for 10min. Remove from water and allow to seal.