"Slow Cooker Au Gratin Potatoes made with gouda cheese-this is comfort food to the extreme, and such an easy recipe using the crock pot!..."
INGREDIENTS
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4 large potatoes, cut in thin slices
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1 medium yellow onion, diced
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pinch each salt and pepper
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4 tablespoons butter
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3 tablespoons all purpose flour
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1 cup milk
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1/4 cup Parmesan cheese
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1 cup shredded Gouda cheese