Name: The Best Potato-Leek Soup
Prep time: 5 min
Cook time: 40 min
Total time: 45 min
Yield: 6
Ingredients: 2 tablespoons unsalted butter; 2 large leeks, white and pale green parts only, rinsed and roughly chopped; 1 quart homemade or store-bought low-sodium chicken stock; 2 medium russet potatoes, peeled and cut into quarters (about 3/4 pound); 1 bay leaf; Kosher salt and freshly ground black pepper; 1 cup buttermilk; 1/2 cup heavy cream; 1/2 teaspoon freshly ground nutmeg; Sliced chives or scallions, for serving