Creamy Mashed Potatoes

Rich, fluffy mashed potatoes made with Yukon Golds, butter, warm milk and sour cream. Includes make-ahead and slow cooker tips for holidays.

White bowl of smooth mashed potatoes topped with sliced green onion and a drizzle of oil
Photo: Pexels

Creamy mashed potatoes are the side dish every holiday table needs, and they are simple once you know a few rules. Start the potatoes in cold water, dry them well after draining, and add warm dairy instead of cold.

Yukon Gold potatoes give the best result. They have a naturally buttery flavor and a creamy texture, so you need less butter to make them taste rich. A spoonful of sour cream adds a gentle tang that keeps them from tasting flat.

This recipe also shows how to make mashed potatoes up to 2 days ahead and keep them warm in a slow cooker, which frees up your stove when you are cooking a big meal.

Why You’ll Love This Recipe

  • Fluffy and creamy, never gluey
  • Only 6 simple ingredients
  • Make ahead and keep warm for hours
  • Naturally vegetarian

Ingredient Notes

Yukon Gold potatoes: They mash smooth and creamy. Russets work too and turn out fluffier and lighter; they may need a little more milk.

Warm milk and butter: Warming the dairy keeps the potatoes hot and helps them absorb it evenly. Cold milk makes them gluey and lukewarm.

See the recipe card below for full measurements.

How to Make Creamy Mashed Potatoes

  1. Start in cold water

    Put the potatoes in a large pot and cover with cold water by about 1 inch. Add the kosher salt. Starting cold helps the chunks cook evenly all the way through.

  2. Simmer until tender

    Bring to a boil over high heat, then lower to a steady simmer. Cook 15 to 20 minutes, until a fork slides into the largest piece with no resistance.

  3. Warm the dairy

    While the potatoes cook, heat the milk and butter in a small saucepan or the microwave until the butter melts. Keep warm.

  4. Drain and dry

    Drain the potatoes well. Return them to the hot, empty pot over low heat for 1 to 2 minutes, shaking the pot, so the extra moisture steams off.

  5. Mash

    Mash with a potato masher or press through a ricer. Pour in the warm milk and butter in two additions, stirring gently with a spatula. Fold in the sour cream, salt and pepper.

  6. Adjust and serve

    Add a splash more warm milk if you like them softer. Taste for salt, transfer to a bowl and top with green onion and a small pat of butter.

Tips for the Best Results

  • Never use a blender or food processor. The fast blades overwork the starch and make the potatoes gluey.
  • Cut the potatoes into same-size chunks so they finish cooking at the same time.
  • Season the cooking water well. It is the best way to season the potatoes all the way through.
  • For the smoothest texture, use a potato ricer.

Common Mistakes to Avoid

MistakeHow to fix it
Gluey potatoesMash by hand or with a ricer and do not overmix.
Watery potatoesDrain well and dry them in the hot pot for 1 to 2 minutes.
Adding cold milkWarm the milk and butter first.
Bland flavorSalt the cooking water and taste again at the end.

Substitutions

  • Sour cream: Cream cheese or plain Greek yogurt.
  • Whole milk: Half and half for richer potatoes, or unsweetened oat milk for dairy-free (use vegan butter too).
  • Yukon Gold potatoes: Russet potatoes, or half russets and half Yukon Golds.

What to Serve With It

  • Roast turkey or chicken with gravy
  • Slow cooker beef pot roast
  • Green bean casserole
  • Roasted carrots

Storage and Reheating

Fridge: Refrigerate in an airtight container for up to 4 days. You can make them up to 2 days ahead of a holiday.

Freezer: Freeze in portions for up to 1 month. The texture may be slightly softer after thawing; stir in a little warm milk.

Reheat: Reheat covered in a 350°F (175°C) oven for 25 to 30 minutes, stirring once, or in a slow cooker on LOW for 2 to 3 hours. Add a splash of warm milk to bring back the creaminess. Keep warm in the slow cooker on WARM for up to 4 hours.

Tools That Make This Easier

As an Amazon Associate I earn from qualifying purchases, at no extra cost to you.

Creamy Mashed Potatoes

Rich, fluffy mashed potatoes made with Yukon Golds, butter, warm milk and sour cream. Includes make-ahead and slow cooker tips for holidays.

📌 Save to Pinterest
Prep
15 min
Cook
25 min
Total
40 min
Serves
8
Course
Side Dish
Cuisine
American

Ingredients

Servings8

Instructions

  1. Put the potatoes in a large pot and cover with cold water by about 1 inch. Add the kosher salt. Starting cold helps the chunks cook evenly all the way through.
  2. Bring to a boil over high heat, then lower to a steady simmer. Cook 15 to 20 minutes, until a fork slides into the largest piece with no resistance.
  3. While the potatoes cook, heat the milk and butter in a small saucepan or the microwave until the butter melts. Keep warm.
  4. Drain the potatoes well. Return them to the hot, empty pot over low heat for 1 to 2 minutes, shaking the pot, so the extra moisture steams off.
  5. Mash with a potato masher or press through a ricer. Pour in the warm milk and butter in two additions, stirring gently with a spatula. Fold in the sour cream, salt and pepper.
  6. Add a splash more warm milk if you like them softer. Taste for salt, transfer to a bowl and top with green onion and a small pat of butter.

Nutrition (per serving)

Calories
230 kcal
Protein
4 g
Carbohydrates
28 g
Total Fat
12 g
Saturated Fat
7 g
Fiber
2 g
Sugar
3 g
Sodium
330 mg

Nutrition is an estimate per serving without optional sauces, calculated from standard USDA values. It will vary with brands and portion sizes.

Frequently Asked Questions

What are the best potatoes for mashed potatoes?

Yukon Golds for creamy, buttery mashed potatoes, or russets for light and fluffy ones. Many cooks use a mix of both.

Why are my mashed potatoes gluey?

They were overworked, usually in a blender, food processor or with too much stirring. Mash by hand or use a ricer, and fold in the dairy gently.

Can I make mashed potatoes ahead of time?

Yes. Make them up to 2 days ahead, refrigerate, and reheat in the oven or slow cooker with a splash of warm milk.

How many potatoes do I need per person?

Plan on about 1/3 to 1/2 pound of raw potatoes per person. Three pounds serves about 8 as a side.