Creamy Horseradish Garlic Mashed Potatoes Recipe

Prep: 20 minCook: 25 min12 servingsmediumAmerican
Creamy Horseradish Garlic Mashed Potatoes Recipe

Rich and velvety mashed potatoes with the bold bite of prepared horseradish and sweet roasted garlic. The combination creates a sophisticated side dish perfect for holiday dinners, steakhouse meals, or any time you want to transform ordinary mashed potatoes into something memorable. The horseradish adds a pleasant heat that complements the creamy base, while roasted garlic brings depth and sweetness. Using russet or Yukon Gold potatoes ensures the perfect fluffy texture that absorbs all the flavors beautifully.

Ingredients

12 servings
  • 5 pounds Russet or Yukon gold potatoes, peeled and cut into chunks
  • ½ cup butter, melted + 2 tablespoons cut into pieces
    olive oil1:1dairy-freevegandairy-free

    reduces richness slightly

    Full guide →
  • ¾ cup half and half
    whole milk1:1lighter

    thinner consistency

    Full guide →
  • cloves from about 2 bulbs of roasted garlic
  • 2 tablespoons prepared horseradish
    fresh grated horseradish1:2traditional

    stronger flavor

    Full guide →
  • 1 teaspoon Kosher salt
    sea salt1:1flavor preference

    slightly different mineral taste

    Full guide →
  • 1 ½ teaspoons ground black pepper

Instructions

  1. 1

    Place potatoes into large saucepan and add enough water to cover, plus about 1 inch

  2. 2

    Cook over medium-low heat until fork tender

  3. 3

    In a medium saucepan, melt butter, add half and half and roasted garlic

  4. 4

    Heat until simmering

  5. 5

    Drain potatoes and pour back into saucepan used to cook them

  6. 6

    Mash potatoes over low heat until smooth

  7. 7

    Add the melted butter and half and half mixture to potatoes

  8. 8

    Continue to mash the potatoes until creamy

  9. 9

    Stir in prepared horseradish

  10. 10

    Mix well with a wooden spoon until light, fluffy and smooth

  11. 11

    Stir in salt and pepper

  12. 12

    Pour potatoes into a serving bowl

  13. 13

    Serve warm

Tips

Tip 1

Roast garlic ahead by wrapping whole bulbs in foil with olive oil and baking at 400F for 45 minutes until soft and golden.

Tip 2

Mash potatoes while hot over low heat to prevent gluey texture - the residual heat helps achieve perfect creaminess.

Tip 3

Adjust horseradish to taste, starting with less and adding more as the heat level can vary between brands.

Good to Know

Storage

Refrigerate covered for up to 3 days. Reheat gently with additional liquid if needed.

Make Ahead

Can be made 1 day ahead and kept warm in slow cooker on low, or reheated in oven covered.

Serve With

Serve immediately while hot in warmed serving bowl. Garnish with fresh chives or additional butter if desired.

Common Mistakes

Watch

Use starchy potatoes like Russet to avoid gluey texture from waxy varieties.

Watch

Mash while hot to prevent lumps from forming as potatoes cool.

Watch

Add liquid gradually to control consistency and prevent overly thin potatoes.

Substitutions

Dairy-Free Swaps

butter
olive oil1:1dairy-freevegandairy-free

reduces richness slightly

Full guide →

General Alternatives

half and half
whole milk1:1lighter

thinner consistency

Full guide →
prepared horseradish
fresh grated horseradish1:2traditional

stronger flavor

Full guide →
Kosher salt
sea salt1:1flavor preference

slightly different mineral taste

Full guide →
Find more substitutions →

FAQ

Can I make these ahead of time?

Yes, prepare completely and refrigerate up to 1 day. Reheat in oven at 350F covered with foil, stirring occasionally and adding liquid if needed.

What if I don't have roasted garlic?

Use 4-6 cloves of fresh garlic sauteed in butter until golden, or 1 teaspoon garlic powder mixed into the butter mixture.

How long will leftovers keep?

Store covered in refrigerator for up to 3 days. Reheat gently on stovetop or microwave, adding milk or cream to restore creaminess.