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Finished mashed potatoes in blue serving bowl.

Garlic Buttermilk Mashed Potatoes

Garlic buttermilk mashed potatoes, made with a food mill for fluffy, smooth and creamy mashed potatoes, perfect for special occasions or the holidays.
Course Side Dish
Cuisine American
Keyword garlic mashed potatoes, homemade mashed potatoes, mashed potatoes
Prep Time 15 minutes
Cook Time 15 minutes
Food mill/mashing 15 minutes
Total Time 45 minutes
Servings 6 servings
Calories 325kcal
Author Kelly Wildenhaus | the hungry bluebird


  • Kosher salt
  • 6 large Yukon Gold potatoes, peeled and cut into chunks about 3 pounds
  • 4-5 large garlic cloves, peeled
  • ½ cup whole milk
  • ¼ pound butter (1 stick) I use salted Kerrygold
  • ¾ - 1 cup buttermilk, shake well
  • Fresh cracked black pepper


  • Bring a large pot of water to a boil, generously salt. Add potato chunks and whole garlic cloves and simmer until fork tender, about 15 minutes.
  • Meanwhile, while potatoes cook, heat butter and whole milk in small sauce pan until butter is melted and mixture is hot but not boiling. Set aside.
  • When potatoes and garlic are tender, drain in colander. Place food mill fitted with medium disk on top of same pot and working in batches, pass potatoes and garlic through mill, turning the handle back and forth.
  • After finished mashing, add hot butter/whole milk mixture and stir well with rubber spatula. Gradually add buttermilk and continue to mix until desired creaminess, about ¾ cup of buttermilk, maybe more. Taste for salt, adding a teaspoon or two, depending on butter used, and some fresh cracked black pepper. Serve warm and enjoy!


  • Use any type of boiling potato, I like Yukon Golds best.
  • I like to use 5 large cloves of garlic, use fewer if you prefer.
  • If you don't have a food mill, use a ricer or a hand masher for best results.
  • Don't be tempted to heat the buttermilk, it will probably curdle. And make sure to shake well before using.
  • I use salted butter, if you use unsalted, salt to taste accordingly.
  • This makes 6 generous servings and could probably serve 8 easily. Depends on how much you load up on your plate!


Calories: 325kcal | Carbohydrates: 35g | Protein: 7g | Fat: 18g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 51mg | Sodium: 213mg | Potassium: 853mg | Fiber: 4g | Sugar: 6g | Vitamin A: 624IU | Vitamin C: 34mg | Calcium: 134mg | Iron: 1mg