In a large kettle, cook peaches in water until tender.
Press through a sieve or process in a food processor.
Measure 8 cups pulp; return to kettle.
Add sugar, ginger and nutmeg.
Cook and stir over medium heat until thickened, about 30 minutes.
Immediately ladle into hot jars, leaving 1/4-in.
Process for 10 minutes in a boiling-water bath.