Hot Potato Salad - cooking recipe

Ingredients

1/2 lb bacon (save 1/3 cup drippings)
1/3 cup vinegar, plus
water, to make 1/2 cup
1 slightly beaten egg
1 teaspoon sugar
1 teaspoon salt
1/4 teaspoon pepper
5 cups diced cooked potatoes
1/2 cup chopped onion

Preparation

Cook bacon crisp: crumble.
Combine 1/3 cup bacon drippings with Vinegar/water, egg, sugar, salt, and pepper.
Heat and stir till thickened.
Add potatoes, onio and bacon: toss, heat through.