1 cup plain whole-milk yogurt (may substitute Greek yogurt; use a little more water)

½ teaspoon salt (optional)

½ cup cold water, or as needed

Combine the yogurt and salt, if using, in a deep bowl. Gradually whisk in the water, as needed, until the mixture is foamy on top. Pour into a tall, chilled glass and serve right away.

Serves 1

Nutrition | Per serving: 170 calories, 13 g protein, 12 g carbohydrates, 8 g fat, 5 g saturated fat, 30 mg cholesterol, 105 mg sodium, 0 g dietary fiber, 10 g sugar

From Istanbul food writer and culinary historian Nazli Piskin