Adapted from "Food in Jars". Not nearly as boozy or as sugary as the ones my grandmother used to make, just enough to give them flavor. I use brandy, but the original recipe called for bourbon. Rum would work well, too, as would a cinnamon stick, some cardamom pods, coriander seeds, or a few whole cloves in the syrup. I use four pounds (nine pieces in a box at Sam's Club) of large peaches and get five pint jars.