"This Roman version of Alfredo is simpler, easier and lighter than the Americanized version, but still has all the rich, cheesy deliciousness you crave...."
INGREDIENTS
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6 Tbsp. unsalted butter, cut into 10 to 12 slices
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3 oz. finely grated or shredded Parmesan cheese (about 1 1/3 c. if freshly grated), plus more for serving
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1/4-3/4 tsp. salt
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12 oz. uncooked fettuccine (or 1 lb. fresh fettuccine)