Cinnamon Blueberry Jam Recipe

Watching my grandmother can hundreds of jars of tomatoes, peaches and pears inspired me to try making jams and jellies myself. I can remember going down into her cellar as a girl—all those jars on the shelves gave me such a warm, homey feeling! My family enjoys this jam on warm corn muffins, or blueberry. The cinnamon's a bit of a surprise. —Barbara Burns, Phillipsburg, New Jersey.