The intense raspberry flavor of this jam makes it a longtime favorite. Warming the sugar beforehand keeps the jam boiling evenly and ensures success.
Ingredients
4 cups (1 liter) granulated sugar
4 cups (1 liter) raspberries
Directions
1. Place sugar in an ovenproof shallow pan and warm in a 250°F (120°C) oven for 15 minutes. (Warm sugar dissolves better.)
2. Place berries in a large stainless steel or enamel saucepan. Bring to a full boil over high heat, mashing berries with a potato masher as they heat. Boil hard for 1 minute, stirring constantly.
3. Add warm sugar, return to a boil, and boil until mixture will form a gel (see tips, below), about 5 minutes.
4. Ladle into sterilized jars and process as directed for Shorter Time Processing Procedure .
Tip: To make a small boiling-water canner, tie several screw bands together with string or use a small round cake rack in the bottom of a large covered Dutch oven. Be sure the pan is high enough for 2 inches (5 cm) of water to cover the jars when they are sitting on the rack.