Preparation Whisk together buttermilk, mayonnaise, vinegar, shallot, sugar, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a large bowl until sugar has dissolved, then whisk in chives. Toss cabbage, radishes, and celery with dressing.
Preparation Whisk together buttermilk, mayonnaise, vinegar, shallot, sugar, 1/2 teaspoon salt, and 1/4 teaspoon pepper in a large bowl until sugar has dissolved, then whisk in chives. Toss cabbage, radishes, and celery with dressing.