* Place whole blueberries in a food processor container; pulse until coarsely chopped. Or, place blueberries in a bowl; crush with a potato masher or pastry blender.
Here’s all the flavor of old-fashioned jam without the bother of boiling jars and processing the finished product, because you keep it in the freezer.
In a large saucepan, combine blueberries and 1/2 cup water. In a small bowl, stir together pectin and 1/4 cup of the sugar. Stir pectin mixture into blueberries. Over high heat, stirring constantly, bring mixture to a rolling boil. Add the remaining 4-1/4 cups sugar all at once; return to a rolling boil. Boil exactly 1 minute, stirring constantly; remove from heat; skim off any foam; set aside until cool enough to handle, about 30 minutes. Transfer to 1-cup freezer containers, filling to about 1/2 inch from the top; continue to cool at room temperature until jam has set; cover and freeze. Thaw to serve; store any leftover jam in the refrigerator for up to one month.