German Potato Salad with Hot Bacon Dressing

4 med. potatoes
1 sm. onion
4 pieces bacon
1 tsp. flour
2 tbsp. sugar
1/2 tsp. salt
1/4 tbsp. pepper
1 tsp. dry mustard
1/3 c. vinegar
1/4 c. water

Boil potatoes (with skins on) until tender. Let cool, peel and dice. Add diced onion and set aside. Fry bacon until crisp, remove from grease, drain. In the hot bacon grease, blend flour, sugar, salt, pepper and dry mustard until smooth. Add vinegar and water. Blend thoroughly. Crumble bacon into potato mixture and add hot dressing. Serve immediately. Dressing is also good served over spinach or leaf lettuce.

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