Slow-Cooker Cheddar and Horseradish Mashed Potatoes

Making mashed potatoes in a slow cooker not only saves precious stovetop space, but also yields uber-tasty spuds: Since you're not boiling the potatoes in lots of water, you don't lose any of that rich potato-y flavor.
  • Level: Easy
  • Total: 4 hr 15 min
  • Prep: 15 min
  • Cook: 4 hr
  • Yield: 8 servings
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Ingredients

5 pounds medium russet potatoes, peeled and cut into 1-inch chunks

12 tablespoons (1 1/2 sticks) unsalted butter, cut into 1/2-inch cubes

Kosher salt and freshly ground black pepper

1 1/2 to 2 cups milk, warm

1 cup sour cream

2 cups shredded sharp Cheddar

1/3 to 1/2 cup prepared horseradish

2 tablespoons sliced fresh chives

Directions

  1. Toss the potatoes, butter, 1 tablespoon salt and 1/2 teaspoon pepper together in a 6-quart slow cooker. Add 1 cup of water, and cook, covered, on high until the potatoes are tender, about 4 hours. (They may have browned lightly in spots, but that is OK.)
  2. Add the sour cream and 1 1/2 cups of the warm milk to the potatoes, and smash them with a potato masher until they are mostly smooth. If they need to be thinned out, stir in the remaining 1/2 cup warm milk. Add most the Cheddar and all the horseradish, and stir to combine. Season to taste with salt and pepper. Garnish with the remaining Cheddar and the chives.
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