4 qt. blackberries 1/2 c. hot water 2 lb. sugar Wash the berries thoroughly, and put them over the fire with the water. Bring to the boiling point, and boil slowly for a few minutes. Then mash the berries, add the sugar, and cook the mixture until, when tested, it is of a jelly-like consistency. Pour into hot, sterilized glasses, cool, and label.