1cupheavy cream(half-and-half can be used for a lighter finish; sauce will be thinner)
1cupfreshly grated Parmesan cheese(use real Parmigiano-Reggiano for best melting)
1/4teaspoonground nutmeg(optional but traditional—adds warmth)
to tasteFresh parsley, chopped, for garnish
Instructions
Prepare the Chicken
Pat the chicken breasts dry and season both sides with half the salt and half the pepper.
If one breast is thicker, gently pound it to even thickness for uniform cooking.
Heat canola oil in a large skillet over medium-high heat. When shimmering, add chicken.
Cook for 6–8 minutes per side until the internal temperature reaches 165°F (75°C) and the exterior is golden.
Remove chicken to a plate and tent with foil to rest while you finish the pasta and sauce.
Cook the Fettuccine
Bring a large pot of salted water to a rolling boil.
Add fettuccine and cook according to package directions for al dente.
Before draining, scoop out and reserve about 1 cup of pasta water.
Drain pasta; do not rinse—starch helps the sauce cling.
Make the Alfredo Sauce
In the same skillet used for chicken, melt butter over medium heat.
Add minced garlic and sauté for about 1 minute until fragrant, but don’t let it brown.
Pour in the heavy cream and bring to a gentle simmer, stirring for 2–3 minutes until it thickens slightly.
Gradually whisk in the grated Parmesan until the sauce is smooth and glossy.
Season with the remaining salt and pepper, plus the nutmeg. If sauce is too thick, whisk in reserved pasta water a few tablespoons at a time until you achieve a silky consistency.
Assemble and Serve
Add the drained fettuccine to the sauce and toss to coat evenly.
Thinly slice the rested chicken and arrange over the pasta.
Garnish with chopped parsley and serve immediately.
Notes
For variations, consider adding shrimp, roasted garlic, or spinach. This dish can also be served with garlic bread or a green salad.