(When my dad gave this recipe to me years ago he neglected to put the amount of potatoes but he was making it for a family gathering so I think it was probably a five pound bag of potatoes, perhaps more, leave me a msg if you figure it out.)
Cook potatoes with skins in salted cold water. Cool-peel-cube.
1 quart of water
6 T cornstarch
1 C vinegar
6 t sugar or to pleasant sweetness
Onion larger than a golf ball, chopped very fine
Salt & pepper to taste
3/4 # of bacon chopped 1/2 " across, sauteed to pleasing brown, stirring occasionally till done. Remove bacon and set aside. To bacon fat add water mixed with corn starch, vinegar, etc. Heat for thickening. Add onions to cubed potatoes. Then add thickened sauce to potato mixture and stir lightly till well mixed. Heat slightly before serving. Add bacon and serve.
My dad would make the above and place it in a yellow insulated covered serving container and take it to family picnics and get raves. I no longer eat meat and I miss this salad. The memories, though, I still have. I give the recipe as promised to my bacon eating kids and friends.