Cook potatoes in boiling water until tender.

Peel, cut into slices, and place in mixing bowl.

Dice and fry in frying pan 1/4 lb. bacon, till almost crisp. Do not let burn.

Remove diced bacon and place into mixing bowl with other ingredients.

Peel and dice onion and place into reserved bacon fat. Saute a few minutes.

Remove sauted diced onion with slotted spoon and place into mixing bowl.

Into at least 2 Tbs. bacon fat, cook 2 Tbs. flour until smooth and bubbly, add 3 Tbs. vinegar and 2 teaspoon sugar, 1 teaspoons salt, and enough water to make a medium sauce. (About 1 cup or more).

Bring to a boil and cook until sauce is thickened.

Pour over ingredients in mixing bowl, and toss and mix.

Taste, if needed add more salt. (Vinegar and Bacon are salty, so add salt last).