1. Cook the Fettuccine Pasta

Start by bringing a large pot of salted water to a boil. Add the fettuccine pasta and cook according to the package instructions, typically about 8-10 minutes for al dente pasta. Be sure to stir occasionally to prevent the pasta from sticking.

If you are using fresh pasta, it will cook much quicker, usually in 2-3 minutes, so keep an eye on it. Once the pasta is done, reserve 1 cup of pasta water before draining. This starchy pasta water will be helpful in thinning out the Alfredo sauce if it becomes too thick.

Drain the pasta and set it aside. You can return the pot to the stovetop and use it to prepare the sauce, or you can use a separate pan for the sauce if you prefer.

2. Make the Alfredo Sauce

In a large skillet or sauté pan, melt the butter over medium heat. Once the butter has melted and started to bubble, add the minced garlic and sauté it for 1-2 minutes, just until fragrant. Be careful not to burn the garlic, as it can become bitter.

After the garlic has softened and released its aroma, pour in the heavy cream, stirring continuously to combine. Allow the cream to simmer gently for 3-4 minutes, stirring occasionally, until it begins to thicken slightly.

Once the cream has thickened, add the freshly grated Parmesan cheese to the pan. Stir the cheese into the sauce until it has melted completely, creating a smooth and creamy mixture. If the sauce is too thick, add a small amount of the reserved pasta water to reach your desired consistency. The pasta water contains starch, which will help the sauce adhere better to the pasta and create a creamier texture.

Season the sauce with salt and freshly ground black pepper to taste. If desired, add a pinch of lemon zest for a touch of brightness and acidity, which balances out the richness of the sauce.

3. Combine the Pasta and Sauce

Add the drained fettuccine pasta to the Alfredo sauce, tossing gently to coat the pasta evenly. If the sauce seems too thick or clings too much to the pasta, add a little more pasta water, one tablespoon at a time, until you reach a smooth, silky texture that coats the noodles perfectly.

Continue to toss the pasta in the sauce for about 1-2 minutes, allowing the noodles to soak up the rich flavors of the Alfredo sauce.

4. Serve and Garnish

Once the pasta is well-coated in the Alfredo sauce, transfer it to serving plates. Garnish with freshly chopped parsley for a pop of color and a touch of freshness. If desired, sprinkle with additional Parmesan cheese for extra flavor.

Fettuccine Alfredo Pasta is best enjoyed immediately while the sauce is still warm and creamy. Serve it with your favorite sides, such as a crisp green salad, garlic bread, or roasted vegetables, for a complete meal.