4 cups fresh blueberries
3 limes, juice and zest
1/4 cup water
4 cups sugar
1 envelope liquid pectin
Combine blueberries, juice and zest of limes, and water in a large, heavy pot.
Cook over medium heat for about 10 minutes, until berries soften and release juices.
Add the sugar and stir to dissolve.
Heat to a boil and cook for about 4-5 more minutes.
Add pectin, and boil for about 2-3 more minutes until thickened.
Remove from heat.
Ladle into sterilized jars, leaving 1/2 inch head space and seal.
Process for 10 minutes in a water bath. (Yield: approx 6 1/2-pint jars)
(If you are unsure of the canning process, there are many informative sites online. I am not a canning authority.)