Tulo

Homemade Fettuccine Alfredo Recipe

Classic fettuccine Alfredo made simply, with butter, parmesan, and starchy pasta water emulsified into a silky sauce, no cream required.
Photo by Engin Akyurt on Pexels

The starchy pasta water is the real backbone of an authentic Alfredo sauce, it's what lets butter and parmesan emulsify into a smooth, clinging sauce off the heat, rather than separating into a greasy puddle.

Prep
10 min
Cook
20 min
Total
30 min
Servings
4

Ingredients

Servings4
  • 1 lb fettuccine, fresh or dried
  • 8 tbsp unsalted butter, cubed
  • 1 1/2 cups parmesan cheese, finely grated
  • 1 tbsp salt
  • 1/2 tsp black pepper, freshly ground

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Instructions

  1. 1Bring a large pot of well-salted water to a boil and cook the fettuccine until just shy of al dente, reserving 1.5 cups of the pasta water before draining.
  2. 2While the pasta cooks, melt half the butter in a large skillet over low heat.
  3. 3Add the drained pasta to the skillet along with a ladleful of the reserved pasta water.
  4. 4Toss constantly over low heat, adding the remaining butter a bit at a time as it melts in.
  5. 5Remove from heat and add the parmesan a handful at a time, tossing continuously and adding splashes of pasta water as needed to keep the sauce loose and glossy.
  6. 6Continue until the sauce coats the pasta smoothly and clings to the noodles, adjusting with more pasta water if it looks tight.
  7. 7Season generously with black pepper and taste for salt before serving immediately.

Tips & variations

  • Real Alfredo, as made in Rome, uses no cream at all, just butter, parmesan, and pasta water, resist the urge to add cream for a more authentic result.
  • Freshly grated parmesan melts far more smoothly than pre-shredded, which is often coated in anti-caking starch that can make the sauce grainy.
  • Toss in sautéed mushrooms, peas, or grilled chicken to turn it into a fuller meal, though the classic version is left unadorned.

Storage & reheating

Best eaten immediately, as the sauce doesn't reheat perfectly. Refrigerate up to 2 days and reheat gently in a skillet over low heat with a splash of water or milk, tossing constantly to bring the sauce back together.

Nutrition

A rich, butter-and-cheese sauce over pasta, higher in fat than a tomato-based pasta sauce, given the butter and parmesan.

Tips from the Tulo kitchen

  • Don't drain the pasta too far ahead of finishing the sauce, it needs to go into the skillet still hot and starchy for the emulsion to come together properly.
  • Keep the heat low once the cheese goes in, high heat is the fastest way to break this sauce and end up with a greasy, separated mess.

FAQ

Does traditional Alfredo sauce contain cream?

No, the original Roman version uses only butter, parmesan, and starchy pasta water. The cream-heavy version common in the US is more of an American adaptation.

Why did my Alfredo sauce turn grainy or clumpy?

This usually happens when the cheese is added over too-high heat, or all at once instead of gradually. Keep the heat low, add parmesan a little at a time, and toss continuously.

Can I use dried fettuccine instead of fresh?

Yes, dried fettuccine works well and is what most home cooks use; just be sure to reserve enough starchy pasta water, since dried pasta releases slightly less starch than fresh.

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