Slice bacon into bits. Cook bacon in a large saucepan or pot on medium heat for 5 minutes or until crispy brown. Remove to a plate or bowl.

Place potatoes in a large saucepan and pour over enough water to cover.

Set pan over high heat and bring to a boil. Boil 8 minutes, until fork tender.

Drain and while still warm, transfer to a large bowl and add onions, cooked bacon, vinegar, and oil.

Season, to taste, with salt and black pepper.