Makes 13/4 quarts
2 quarts apple cores and peels
2 quarts water
1/3 cup sugar
1. Put the apple cores and peels in a large glass or ceramic bowl. Dissolve the sugar in the water and pour over the cores and peels. Cover with a plate and weight down with something heavy to keep the solids submerged. Cover the entire bowl with cheesecloth or a kitchen towel and leave on the counter out of direct sunlight for 7 days.
2. Strain the cores and peels from the liquid and discard the solids. Put the liquid in jars or bottles and secure a piece of cheesecloth over the opening with a rubber band to allow airflow. Allow to age at room temperature out of direct sunlight for 6 to 8 weeks, until the desired flavor is achieved. A "mother" will begin to develop after about 2 weeks.