Chokecherry Syrup - cooking recipe

Ingredients

4 quarts chokecherries
4 quarts water
6 cups sugar, as below
1 (85 g) package certo pectin

Preparation

Boil water and berries for 1/2 hour.
Strain.
For every 4 cups of syrup add 6 cups of sugar.
Bring to a rolling boil.
Add 1 package of Certo.
Boil 1 minute more.