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Top down shot of the corner of a pan of make ahead mashed potatoes with butter and fresh thyme on top.

Make Ahead Mashed Potatoes

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  • Author: Erin Jensen
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour
  • Yield: 16 servings 1x
  • Category: Side Dish
  • Method: Stove Top + Oven
  • Cuisine: American


Make delicious mashed potatoes before the holidays with this Make Ahead Mashed Potato recipe! So easy and so good!


  • 4 pounds yukon gold potatoes, cut into large chunks*
  • 2 1/2 teaspoons kosher salt
  • 1/8 teaspoon ground black pepper
  • 1/4 cup unsweetened almond milk, more as-needed
  • 1/2 cup butter, room temp and cut into slices
  • 1/4 cup plain Greek yogurt
  • 1/2 cup + 2 tablespoons sour cream
  • 1/4 cup ranch dressing
  • 1 1/2 teaspoon garlic powder


  1. Bring a large pot of water to boil.
  2. Add cut up potatoes (the smaller you cut them the shorter the boil time will be) to pot of boiling water. 
  3. Let boil for 15-25 minutes or until they are very tender. 
  4. Drain potatoes and place in a large bowl. 
  5. Add remaining ingredients and let the butter melt/soften for a minute or two.
  6. Use a potato masher to mash everything together (alternatively you can use an electric hand mixer, if you prefer) until the consistency is smooth.
  7. Taste and adjust salt or other ingredients, as-desired. 
  8. Transfer potatoes into a 9×13 baking dish. Cover tightly and place in the refrigerator for up to 2-3 days.
  9. To reheat preheat oven to 350 degrees F. Keep mashed potatoes in the same pan, covered in aluminum foil, and place on middle rack. Leave until warmed through, approx. 30 minutes. Feel free to uncover the last 5-10 minutes and place potatoes under the broiler (not directly under it but one or two spots below) to finish. 


  • Can you freeze mashed potatoes: we tested freezing this recipe and it did NOT work very well. Once the mashed potatoes were frozen and then thawed the resulting consistency was watery and not pleasant – hopefully simply making them a day or two ahead of time will be enough! 
  • Dairy-Free: looking for a dairy-free version try our Dairy-Free Mashed Potatoes recipe!
  • Serving: this is the perfect Holiday side dish to serve alongside your Smoked Turkey, CrockPot Ham or Beef Tenderloin


  • Serving Size: 6 oz
  • Calories: 173
  • Sugar: 1.3 g
  • Sodium: 244.8 mg
  • Fat: 8.8 g
  • Carbohydrates: 21 g
  • Protein: 3.4 g
  • Cholesterol: 19.3 mg