Hot Bacon Potato Salad

Why I Love This Recipe
For my cooking club's Hungarian pot luck, I brought this in and it was a hit!
Ingredients You'll Need
8 whole red potatoes, washed
1 small onion
1/4 lb bacon
3 tablespoons vinegar
2 tablespoons all purpose flour
2 teaspoons sugar
1 teaspoon salt
1 cup water
polish kielbasa sausage, cooked & sliced on bias
Directions
Cook potatoes in boiling water. Peel & cut in slices. Place in mixing bowl.
-- Dice & fry bacon until almost crisp. Add to mixing bowl.
-- Saute diced onion in bacon fat and add to mixing bowl.
-- In remaining bacon fat, add the flour and cook until smooth and bubbly. Add a touch of butter if there is not enough bacon fat.
-- When roux is formed, add vinegar, sugar, salt and water to make a medium sauce. Bring to a boil and cook until thickened.
-- Pour sauce over ingredients in mixing bowl, toss and mix to combine.
-- Add salt to taste if desired. Top with sliced cooked sausage. Serves 4.