Untested - Potted Red Cabbage

From Ben's fragment of a Pennsylvania Dutch cookery book, pg 17

1 medium head red cabbage, cut into small pieces
2 tart apples, chopped fine
2 Tbsps bacon fat
1 Tbsp lemon juice
1 medium onion, chopped fine
1 Tbsp sugar
salt and pepper

1. Heat the bacon fat in a heavy pot and fry the onion until soft.
2. Add the red cabbage and cook, stirring occasionally, for 30 minutes (do not add water).
3. Add the apples, the lemon juice and the sugar.
4. Season with salt and pepper and cook another 30 minutes, again stirring occasionally.
5. Adjust seasoning and serve.