Strain the cooked apples in a rotary type food strainer, food mill, or similar equipment. For very smooth applesauce you can use a food processor instead. No straining is needed for chunky applesauce. While warm, add brown sugar according to taste. The amount depends on how sweet you like it and the tartness of the apples. Start with less than 1/4 cup brown sugar per quart of applesauce up to 1/2 cup or more per quart for very tart varieties. Add cinnamon - about 1/4 teaspoon per quart of applesauce. Pour the applesauce into pint or quart size canning jars and process in a boiling water bath canner - 20 minutes for pints, 25 minutes for quarts. Applesauce may also be frozen, but it will be thinner after thawing.