Pyracantha Jelly

2 pints pyracantha berries
2 pints water
1 small lemon
1 small grapefruit
1 package Sure-Jell
5 1/2 cups granulated sugar

Boil berries in water for 20 minutes. Drain and measure juice. Add juice of lemon and grapefruit. There should be 4 1/2 cups of combined juices. Add 1 package of Sure-Jell to juices and bring to a boil. Boil for 1 minute and then add sugar. Boil to jell, about 2 minutes at a rolling boil. Pour into prepared sterilized jars, then seal.