Baked German Potato Salad
["3/4 to 1 c. bacon, diced and fried", "1 c. sliced celery", "1 c. diced onion", "3 Tbsp. flour", "2/3 c. cider vinegar", "2/3 c. sugar", "1 1/3 c. water", "2 tsp. salt", "1/2 tsp. pepper", "8 c. cooked sliced potatoes (about 8 medium)"]
["Fry bacon in large skillet until crisp.", "Remove bacon; drain off fat, measure fat and return 1/4 cup to skillet.", "Add onions and celery.", "Saute 2 to 3 minutes.", "Blend in flour.", "Stir in water and vinegar.", "Cook, stirring constantly, until mixture is thick and bubbly.", "Stir in sugar, salt, pepper and bacon."]
["bacon", "celery", "onion", "flour", "cider vinegar", "sugar", "water", "salt", "pepper", "potatoes"]