"This is the easiest dinner you could possibly make. Add some crushed red pepper for a little kick and please, please, please freshly grind your pepper!..."
INGREDIENTS
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Salt, to taste
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12 ounces pasta (spaghetti or bucatini)
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6 tablespoons unsalted butter
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1 1/2 teaspoons freshly ground pepper
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1 cup freshly grated Parmesan or Asiago, as needed
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1 egg yolk