It's called "freezer jam" because it's stored in the freezer--NOT on the pantry shelf. It tastes more like fresh fruit because you don't cook the fruit! Once thawed it must be stored in the fridge. My favorites are strawberry and peach. This Instructable is long but it only took a bit more than an hour to make a batch of jam. (Took more time to edit the pix and make the Instructable!)
Step 1: Ingredients
Need about two pounds of fresh ripe peaches, a lemon, sugar, and a box of powdered pectin (Sure-Jell, Jel-Ease.) If the amounts given in the pectin box are different from what's given here, go with the directions IN THE BOX. Different brands may have different amounts of pectin. Liquid pectin is different; don't substitute it.