"Lumps are welcome in this mashed potato recipe, so there's no need to pull out the beaters or big mixer; all you need is a big fork and a bowl. The celery root adds a wonderful nutty flavor...."
INGREDIENTS
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5 medium Yukon Gold potatoes, unpeeled, cut into quarters
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3/4 cup to 1 cup sour cream
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1 large celery root, peeled of tough skin and cut into 1-inch pieces
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Kosher salt to taste
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1 vegetable or chicken bouillon cube
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Black pepper to taste
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2 tablespoons unsalted butter