In a large Dutch oven, combine potatoes and water to cover. Bring to a boil over medium-high heat. Reducet heat, and simmer 10 minutes or until potatoes are tender. Drain and return to pot.
Add sour cream, butter, milk, salt, and pepper. Mash to desired consistency.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/slow-cooker-roast-beef-recipe/