Ingredients
Equipment
Method
- Bring a large pot of generously salted water to a rolling boil.
- Add the fettuccine to the boiling water and cook according to package directions until al dente, usually about 8-10 minutes.
- Before draining, reserve at least 1 cup of the starchy pasta cooking water. This is crucial for the sauce.
- Drain the pasta thoroughly but do not rinse.
- While the pasta cooks, melt the unsalted butter in a large, shallow sauté pan or skillet over medium-low heat.
- Add the drained hot fettuccine directly to the pan with the melted butter. Toss gently to coat the pasta.
- Immediately begin adding the finely grated Parmesan cheese in small increments, tossing continuously. Gradually add a splash or two of the reserved hot pasta water (1-2 tablespoons at a time), tossing vigorously to emulsify the butter, cheese, and water into a smooth, creamy sauce.
- Continue this process, adding more cheese and pasta water as needed, until the sauce is glossy and coats the pasta beautifully. The amount of pasta water may vary.
- Season generously with freshly ground black pepper. Taste and adjust salt if necessary, remembering Parmesan is salty.
- Serve immediately on warmed plates, garnished with additional grated Parmesan and a final grind of black pepper, if desired.
Notes
Authentic Alfredo relies on emulsification, not cream. The starch from the pasta water is vital; reserve at least 1 cup. Use high-quality unsalted butter and freshly grated Parmesan for the best flavor and texture; pre-grated cheese often contains anti-caking agents that hinder emulsification. Toss vigorously and continuously to create a smooth, glossy sauce that clings to the pasta. Serve immediately, as the sauce can tighten quickly. Do not overcook the pasta; aim for al dente as it will continue to cook slightly when tossed with the hot sauce. A pinch of nutmeg can enhance the flavor.
