Scrub potatoes; rinse. Boil in jackets; let cool. Peel and cut in 1/4-inch slices.
Cook bacon in hot pan until crisp. Add onion; stir and cook until transparent. Add vinegar, stock or bouillon, and seasonings. Stir; let come to a boil. Stir in egg; remove from heat and pour over potatoes.Makes 2 to 4 Source: