Haven't made this for a couple of years, but it's pretty tasty. Saute onions in olive oil for five minutes or until tender. Add spices and saute for 2 minutes. Stir in vinegar and sugars, then simmer, partly covered for 15 minutes. Blanch peaches slightly in boiling water for 1 minute. Drain, peel pit and slice. Add to onion mixture and simmer just until tender. Transfer with slotted spoon to sterilized mason jar. Reduce syrup over high heat to 1.5 cups. Add slowly to jars to almost cover fruit. Stir. Fill jars slowly with syrup, cap loosely and cool. Tighten caps and let stand in dark place at least 2 weeks. I don't remember where this came from, but I suspect that it was either Gourmet or Sunset Magazine. In my handwritten copy it also called for 2 teaspoons ground cumin as well as one tablespoon. I omitted it above, but I think it should have been 2 teaspoons ground coriander.