This section is from the book "The Blue Grass Cook Book", by Minnie C. Fox. Also available from Amazon: The Blue Grass Cook Book.
3/4 pound sugar to 1 pound of fruit.
Use tart apples. Add water and cook to a thick pulp. Measure and add 3/4 pound of sugar to 1 pound fruit. Stir well all the time to keep from burning, and remove the scum as it rises. Flavor with cinnamon and lemon to taste. Put in stone jars and cover well.
Wash and pick the berries and mash well with the hands. Be sure to squeeze out the heart, which is very hard. Weigh the fruit and put 3/4 pound sugar to 1 pound fruit. Boil in a porcelain kettle. Remove scum as it rises and stir constantly to prevent sticking at bottom. Let it cook till thick.
Use recipe above, but strain through a colander and remove the seed before cooking. This makes a clear jam, and many people prefer it.
 
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