Pure Raspberry Preserves

Wash the berries and pick off the blossom ends, being careful not to crush the berries. Place berries and sugar in alternate layers in an open saucepan. Let them stand overnight to draw out the juice. Next day place over low heat and bring slowly to a boil. Continue boiling on medium heat until the syrup is thick. Pour hot into sterilized glasses or small jars. makes about 4 half-pint jars or glasses of preserve. Do not double recipe.