INGREDIENTS
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Nonstick cooking spray, for the baking dish
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2 1/2 cups prepared mashed potatoes
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1/2 cup low-sodium vegetable stock
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1/2 cup sour cream
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One 1-ounce package onion dip powder
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1/4 cup chopped fresh chives
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8 strips cooked bacon, crumbled
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Freshly cracked black pepper
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3/4 cup shredded extra-sharp Cheddar
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Kettle-cooked potato chips, for serving