Instructions
- At the same time, you can prepare salad dressing: peel the onion, finely chop, pour in the broth, bring to a boil and cook for 5 minutes. Then add mustard, vinegar, salt to taste and more black pepper. Beat the puree with a blender. Add vegetable oil and mix. Immerse the prepared potatoes in the hot dressing and leave for an hour. Periodically, during this time, gently stir the potatoes.