As you could probably guess, it's dressed with vinegar. Most likely, vinaigrette came into Russian cuisine from Europe. But it became a Soviet daily classic. Especially in the fall-winter-spring ...
Make vinaigrette: In a blender, process oil, vinegar, lemon juice, mustard, bitters, 1 teaspoon salt and pepper to taste until emulsified. (Alternatively, shake ingredients in a jar.) Adjust ...