This traditional fettuccine Alfredo uses just butter, Parmigiano-Reggiano, and starchy pasta water to create an emulsified, creamy sauce without heavy cream. The technique relies on proper timing and heat control to achieve silky texture.
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Cook fettuccine in a large pot of salted boiling water until very al dente. Before draining, reserve at least 1 cup of the starchy pasta water.
In a large skillet over medium-high heat, add about half of the reserved pasta water and bring to a simmer.
Add the cubed butter to the skillet and allow it to melt completely into the water.
Using a spider strainer or tongs, transfer the al dente pasta directly into the skillet.
Toss the pasta continuously to coat it in the butter and water mixture.
Sprinkle a generous amount of grated Parmigiano-Reggiano cheese over the pasta.
Continue to toss and stir vigorously to melt the cheese and create an emulsified, creamy sauce. Add more pasta water as needed to reach your desired consistency.
Add more cheese if desired and toss until the sauce perfectly coats every strand of pasta. Serve immediately.
Alfredo is best eaten immediately. Leftovers can be refrigerated up to 1 day and gently reheated with a splash of pasta water over low heat, though sauce may separate.
Breaking occurs from high heat or adding cheese too quickly. Keep heat moderate, remove pasta from heat before adding cheese, and add it gradually while stirring constantly. Use freshly grated Parmigiano-Reggiano, not pre-grated.
Alfredo is best served immediately. If needed, finish cooking pasta 1-2 minutes before service and toss in the sauce just before serving to prevent drying out.
Pre-grated cheese contains anti-caking agents that prevent smooth emulsification. Freshly grated Parmigiano-Reggiano is essential for proper sauce texture.
Reserve at least 1 cup before draining. Starchy pasta water is crucial for emulsifying the sauce; start with the full cup and add more if the sauce is too thick.
Yes. Maintain the ratio of 1 tbsp butter and 2 tbsp cheese per 1 oz dry pasta. Adjust pasta cooking water proportionally, starting with 1/4 cup per serving.
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