Make Ahead Slow Cooker Mashed Potatoes

Written by
Linda Larsen
Linda Larsen is a journalist, quick-cooking and slow-cooking expert, and accomplished cookbook author with over 30 years of experience in testing and developing recipes.
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Linda Larsen
Updated 07/20/19
Slow cooker mashed potatoes recipe

The Spruce Eats / Julia Hartbeck
  • Total: 3 hrs 55 mins
  • Prep: 25 mins
  • Cook: 3 hrs 30 mins
  • Servings: 12 servings
Nutritional Guidelines (per serving)
299 Calories
16g Fat
34g Carbs
6g Protein
See Full Nutritional Guidelines Hide Full Nutritional Guidelines
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Nutrition Facts
Servings: 12
Amount per serving
Calories 299
% Daily Value*
Total Fat 16g 20%
Saturated Fat 9g 46%
Cholesterol 61mg 20%
Sodium 380mg 17%
Total Carbohydrate 34g 13%
Dietary Fiber 4g 13%
Protein 6g
Calcium 64mg 5%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

You can make these delicious slow cooker mashed potatoes ahead of time, refrigerate it for up to two days, then reheat it and keep it hot in the slow cooker. These potatoes have a great consistency—creamy and smooth—and the perfect flavor, too

Potatoes made this way are perfect when you are entertaining, especially for large meals like on Thanksgiving and the holidays. Having one course done and waiting for you is an excellent way to make hosting, cooking, and feeding a large group a lot easier. These potatoes get the creamy taste from the cream cheese and sour cream.

If you would like, you could saute a chopped onion and some minced garlic in 1/3 cup butter until tender. Once cooked and cooled, add it to the sour cream. If you plan to add these fresh bits of onion and garlic, then be sure to omit the onion powder and garlic powder as directed in the recipe.

Keep the potatoes delightfully and safely warm in the crockpot on the serving table for up to two hours.

Ingredients

  • 5 pounds russet or Yukon gold potatoes (peeled and quartered)
  • 1 (8-ounce) package cream cheese (softened)
  • 1 cup sour cream
  • 1 teaspoon onion powder
  • 1 1/2 teaspoons salt
  • 1/4 teaspoon garlic powder
  • 1/4 teaspoon white pepper
  • 1 egg (beaten)
  • 1/3 cup butter

Steps to Make It

  1. Gather the ingredients.

    Ingredients for slow cooker mashed potatoes
    The Spruce Eats / Julia Hartbeck

  2. Cook the potatoes in large pot of boiling salted water until they are tender, about 20 to 30 minutes.

    Slow cook potatoes
    The Spruce Eats / Julia Hartbeck

  3. Drain the potatoes in a colander, return the potatoes to the dry pot. Shake over low heat for about 1 minute. This helps make the potatoes fluffy as it drives off excess moisture.

    Drain potatoes
    The Spruce Eats / Julia Hartbeck

  4. Mash the potatoes until there are no lumps. Beat in the cream cheese, sour cream, onion powder, salt, pepper, and egg.

    Mash potatoes
    The Spruce Eats / Julia Hartbeck 

  5. Place the mashed potatoes in a greased 9 x 13 baking dish. Melt the butter and drizzle over the potatoes. Cool for 20 minutes, then cover and refrigerate up to three days.

    Place in greased pan
    The Spruce Eats / Julia Hartbeck

  6. Take the potatoes out of the refrigerator about 3 1/2 hours before serving time. Stir the potato mixture well. Remove the potatoes from the dish and place it in a 4- or 5-quart crockpot. Cover and cook on low heat for 3 to 4 hours, stirring once or twice.

    Take potatoes out
    The Spruce Eats / Julia Hartbeck

  7. You can add more melted butter or some cream or milk if you want a softer consistency. The potatoes can be held in the slow cooker an additional 30 minutes or more on low. Or, turn the crockpot to "keep warm" for another hour or two, if necessary.

    Add more melted butter
    The Spruce Eats / Julia Hartbeck

  8. Serve and enjoy!

    Serve
    The Spruce Eats / Julia Hartbeck

Tips

  • For easier clean up, try using a liner in your slow cooker for easier cleanup.
  • Cook entirely in the crockpot. Instead of boiling the potatoes to start in a separate pot, you can cook these potatoes from start to finish in the slow cooker. It will take longer, but, if you would prefer to "set it and forget it," this is a good option. Add your potatoes, milk for a cooking liquid (about 1 1/2 cups), put in your spices, and set on high for 4 to 5 hours. Add the butter and other dairy ingredients at the end.

Recipe Variation

  • To make dairy-free potatoes, you can also cook the potatoes in chicken or vegetable broth instead of using sour cream, cream cheese, and butter.