I got this recipe from an internet search. It said it was exported from MasterCook from Kraft General Foods. It is very easy to make and is excellent jam. The recipe called for sour cherries, but I used sweet ones and it turned out wonderfully. Very nice blend of flavors.The cherry measurement is approx 3 cups pitted. You will need to chop the cherries and measure out the 1 & 1/2 cups after they have been chopped. It takes about 3 cups to get 1 & 1/2 cups chopped.