|50 ml||apple cider vinegar|
|30 ml||vegetable oil|
|chives for garnish|
Cook, then peel potatoes. Quarter peeled potatoes and finely slice. Halve radishes and slice, as well. Finely dice apple with peel on. Cut scallions into fine rings. Combine all ingredients in a bowl.
Mix yogurt, oil, vinegar, salt, and pepper in a separate bowl, then fold into the vegetables, and set aside to marinade for at least 1 hr.
Season again with salt and pepper, and garnish with plenty of chopped chives.