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mustard mashed potatoes recipe thanksgiving

The Best Mustard Mashed Potatoes

These Mustard Mashed Potatoes use a classic French technique to achieve the creamiest, fluffiest texture. The potatoes are dried after boiling to remove excess moisture, allowing them to absorb more butter and cream. Finished with Dijon and whole grain mustard, these mashed potatoes bring brightness and depth that elevate any Thanksgiving or holiday meal.
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Prep Time 5 minutes
Cook Time 20 minutes
Total Time 25 minutes
Servings 6 servings
Calories 320 kcal

Equipment

  • large pot
  • colander
  • Potato Ricer or Hand Masher
  • saucepan
  • Heat-Proof Bowl

Ingredients
  

  • 3 lbs Russet or Yukon Gold potatoes, peeled and cut into 1-inch pieces
  • 1 cup Heavy cream
  • 6 tbsp Unsalted butter
  • 1 1/2 tsp Salt
  • 1/2 tsp Black pepper
  • 1/2 cup Sour cream or crème fraîche
  • 1 tbsp Dijon mustard
  • 1 tbsp Whole grain mustard

Instructions
 

  • Place the peeled and cubed potatoes in a pot of heavily salted water. Bring to a boil, reduce to a simmer, and cook 15–20 minutes until tender.
  • In a small saucepan, heat the heavy cream, butter, salt, and pepper over medium heat until the butter melts. Remove from heat and set aside.
  • Drain the potatoes fully. Return them to the pot and place over low heat. Stir every minute for 2–3 minutes until the potatoes look dry and slightly crumbly around the edges.
  • Remove from heat. Pass the potatoes through a potato ricer into a large bowl, or mash gently with a hand masher. Do not use an electric mixer.
  • Pour the warm cream and butter mixture over the potatoes. Stir gently until light, smooth, and fluffy.
  • Mix in the sour cream, Dijon mustard, and whole grain mustard. Taste and adjust seasoning as needed.

Notes

Restaurant Holding Trick: Place finished potatoes in a heat-proof bowl. Cover tightly with plastic wrap and set over a pot of gently simmering water. Keeps perfectly hot for hours.
Flavor Variations: Add garlic by steeping minced cloves in the cream mixture. Or add Parmesan for extra richness.
Best Pairings: Thanksgiving turkey, roasted pork loin, braised short ribs.