Blackberry Jam
["4 c. crushed blackberries", "4 c. sugar"]
["Wash berries and place in kettle with sugar.", "Boil rapidly, stirring constantly until mixture thickens.", "Remove from heat and skim the top.", "Stir and skim alternately for 5 minutes.", "Pour into hot jars and use hot lids.", "Hot water bath for 5 minutes.", "Makes 4 to 5 half pint jars."]
["blackberries", "sugar"]