Cardamom-Peach Jam:
Prepare as directed, except stir 3/4 teaspoon freshly ground cardamom into peach mixture after skimming off foam.
Sweet Basil-Peach Jam
Prepare as directed, except stir in 1/2 cup snipped fresh basil after skimming off foam.
Bourbon-Peach Jam
Prepare as directed, except stir in 1/2 cup bourbon with the sugar, peaches, and lemon juice.
Chipotle-Peach Jam
Prepare as directed, except stir in 2 finely chopped chipotle chile peppers in adobo sauce with the sugar, peaches, and lemon juice.