"Serve this caramelized onion dip with sweet potato chips – a cheesy appetizer...."
INGREDIENTS
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2 tablespoons butter
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3 large sweet onions, thinly sliced
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1 package (8 oz) cream cheese, softened
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2 cups shredded Swiss cheese (8 oz)
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1 cup freshly grated Parmesan cheese
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1 cup regular or reduced-fat mayonnaise
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Sweet potato chips