Yogurt Mashed Potatoes With Chipotle Peppers, Goat Cheese and Caramelized Shallots... Ingredients 2 pounds whole russet or Yukon gold potatoes Kosher salt 1 stick softened butter or 1/2 cup extra-virgin olive oil 1 1/2 cups plain yogurt Freshly ground pepper 1 to 2 tablespoons chopped chipotle peppers in adobo sauce 1 cup goat cheese, crumbled