As a kid, jam making dominated the summer berry and fruit season. My dad grew much of the fruit: rows of strawberries ripened not long after school let out, and raspberries, boysenberries, and loganberries, which my dad started with cuttings from my grandfather’s vines, came on midsummer. Raspberries were always my favorite: I learned from my mom to fill small canning jars with fresh berries using a classic recipe straight out of the Ball Blue Book, with fruit, lemon juice, powdered pectin, and lots of sugar.
That last bit is the reason I’ve turned from my childhood recipes to updated versions using Pomona’s Universal Pectin whenever I want to can any jam with added pectin. It jells with little or no sweetener and is vegan (it’s extracted from citrus peel and activated by calcium). You can get about four batches instead of the usual one from each box of pectin, and although you risk a softer set, I’ve successfully cooked multiple batches at once. The first jam I ever made with it, more than 10 years ago and using a blend of berries, is still one of my favorites. I soon followed it with a version using my favorite sour cherries.
Learn to make Tart Berry Jam and Sour Cherry Jam