Crushed Red Potatoes with Buttermilk

Cover potatoes with cold water in a large saucepan. Add salt and bring to a simmer over medium heat. Cook until tender, 12 to 15 minutes. Drain the potatoes in a colander and transfer to a medium bowl. Coarsely crush the potatoes with a potato masher or the back of a large spoon. Gently stir in buttermilk and chives. Season with salt and pepper.