"Crockpot Cheesy Mashed Potatoes with Caramelized Onions: This make-ahead method makes for the creamiest and most flavorful mashed potatoes!..."
INGREDIENTS
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5 pounds Russet or Yukon Gold potatoes, peeled and quartered
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2 cups water
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2-4 cloves garlic
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2 teaspoons kosher salt
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1 stick (1/2 cup) salted butter
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1-2 yellow onions, thinly sliced or chopped
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1/4 cup dry white wine
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kosher salt and black pepper
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1 tablespoon chopped fresh thyme
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8 sage leaves
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kosher salt and black pepper
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1/2 cup sour cream
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1/2 - 1 cup heavy cream
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1 1/2 cups shredded gruyere cheese