Alongside carbonara and amatriciana, cacio e pepe is one of Rome’s most essential pasta dishes. Celebrated for its elegant simplicity, the most classic versions include just pasta, freshly ground black pepper, and Pecorino Romano cheese. This version adds butter, which helps the sauce emulsify and lets the crushed pepper bloom, giving the fullest flavor. We also toss in a bit of Parmesan to balance Pecorino’s sharp, salty tang with warm, nutty richness.
Perfectly silky sauce takes a little technique: grate cheeses on the finest holes of a box grater (not a Microplane), reserve pasta water to loosen the sauce, and use fresh, coarsely ground pepper. While tonnarelli (egg noodles with a square cross-section) is traditional, other long pastas like spaghetti or bucatini work beautifully. Cacio e pepe is best served immediately, so set the table before you start cooking. A simple green salad makes a nice compliment, and garlic bread is always welcome.
Tips for perfect cacio e pepe
Prevent clumping: Use a box grater or high-powered blender to break down the cheeses. A Microplane produces wispy shreds that are prone to clumping. When ready, add the cheese gradually, off heat, alternating with splashes of reserved pasta water while stirring or tossing vigorously to create a smooth, emulsified sauce.
Pasta handling: Lift pasta directly from the boiling water with tongs or a pasta spoon—skip the strainer—to keep the starchy water handy for thinning out and emulsifying the sauce as needed.
Cheese balance: Pecorino Romano is sharp, salty, and tangy, while Parmesan (or Grana Padano, Piave, or Asiago) adds warmth and nuttiness. Combining the two creates a sauce that’s flavorful but balanced, without one cheese overpowering the other. If you have trouble finding Pecorino, you can go all in on another hard cheese, but the flavor will be different from what is intended.
Pepper matters: Coarsely grind fresh black peppercorns—or crush them in a mortar or in a zip-top bag using a heavy pan—for bold, aromatic flavor. Toasting it briefly in butter helps release its fragrance.
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