"Instant Pot Caramelized Onion Mashed Potatoes with cheddar cheese, sour cream, and smoky bacon is a great make-ahead side dish...."
INGREDIENTS
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3 tablespoons unsalted butter, divided
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2 large yellow onions, halved and thinly sliced
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6 Medium-size russet potatoes (about 2 pounds), peeled and quartered
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⅓ cup sour cream
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3 tablespoons milk, plus more as needed
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¼ teaspoon freshly ground black pepper
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½ cup shredded Cheddar Jack cheese
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2 slices of bacon, cooked and crumbled