Go Apples

List of ingredients:
2 lbs of Granny Smith apples.
2 lbs of McIntosh apples.
2 medium lemons.
2 medium oranges.
2 ½ cups of dark or golden raisins.
1 2/3 cups of currants.
½ cup of diced candied orange peel.
1 ¼ cups of light brown sugar.
2/3 cup of dark rum or brandy.
¼ cup of distilled white vinegar.
2/3 cup of unsalted butter.
1 teaspoon [...]