Add remaining vinegar, olive oil, mustard, red onion, chives, chicken stock, and sugar. Using a rubber spatula or wooden spoon, roughly stir and fold mixture so that potatoes release some starch and liquid begins to thicken a little. Season to taste with more salt and white or black pepper. Set aside to rest for at least 30 minutes and up to overnight. (If resting longer than 4 hours, cover bowl and transfer to refrigerator.) Stir again vigorously to thicken dressing; it should have a loose but not soupy consistency. If it’s too thick, thin it out with a little extra water or chicken stock and re-season. Serve cold or at room temperature.
Published at Tue, 25 Jul 2017 07:43:00 +0000