Fill 7 sterilized quart jars with peeled, sliced apples.
4 1/2 cups sugar
1 cup cornstarch
1/4 teaspoon nutmeg
2 teaspoons cinnamon
Stir together with 10 cups water and 1 tablespoon lemon juice. Heat to boiling, stirring continuously. Pour the mixture over the apples, put on lids and process in boiling water bath for 20 minutes.
I always have to let them cool for a while before removing from the water, otherwise, the filling is still boiling, and will force itself up under the lid, making sealing uncertain.