Boiled potatoes in sour cream sauce with mustard
Peel the potatoes, cook in salted water, cool, cut into circles. (You can cook the potatoes unpeeled, cool, then peel and cut. ) Stir the chopped leeks, table mustard and sour cream, salt a little and pour the potatoes with the resulting sauce.
potatoes - 1 kg, sour cream - 250 g, leeks - 100 g, mustard - 1 tbsp. spoon, salt to taste