8 cups peeled and chopped peaches
1/4 cup lemon juice
1 vanilla bean (or 1 to 2 teaspoons good vanilla extract)
2 cups sugar
1 tablespoon good bourbon (optional)

Put the peaches, lemon juice and 2 cups sugar in a heavy-bottomed pot. Slice the vanilla bean in half lengthwise. Scrape out the seeds, and place in the pot along with the empty pod halves. (If using vanilla extract, add this to the peaches instead.)

Bring the mixture to a boil, then reduce to a simmer. If using, add the bourbon. Simmer for about 1 1/2 hours, stirring occasionally, or until thickened to desired consistency.

Ladle hot jam into prepared jelly jars, discarding the vanilla bean pods. Process jam in a boiling water bath for 15 minutes.