Hot Potato Salad

1. In skillet, cook bacon.
2. Remove and drain.
3. Pour off all but 3 T bacon fat, add onion and celery and stir fry 1-2 minutes.
4. Blend in flour.
5. Add juice and vinegar, stirring until mixture thickens.
6. Add sugar.
7. Preheat oven to 350 deg F. Place potatoes, apples, and crumbled bacon in greases 1 1/2 qt casserole.
8. Add skillet mixture, mixing lightly.
9. Cover and bake 30 minutes.