1. Cook the Fettuccine Pasta

Start by bringing a large pot of salted water to a boil. Once the water is boiling, add the fettuccine pasta and cook according to the package directions, typically about 10-12 minutes, until the pasta is al dente. Stir occasionally to prevent the noodles from sticking together.

Once the pasta is cooked, drain it, reserving 1 cup of the pasta water. Set both the pasta and reserved water aside. The reserved pasta water will help loosen the Alfredo sauce if it gets too thick.

2. Prepare the Chicken

While the pasta is cooking, season the chicken breasts with salt, pepper, garlic powder, and paprika (if using). Heat the olive oil in a large skillet over medium-high heat. Once the oil is hot, add the chicken breasts to the skillet. Cook for about 6-7 minutes per side, or until the chicken is golden brown and fully cooked through. The internal temperature should reach 165°F (75°C).

Once the chicken is cooked, remove it from the skillet and let it rest for a few minutes before slicing it into thin strips or bite-sized pieces.

3. Make the Alfredo Sauce

In the same skillet you used to cook the chicken, melt the butter over medium heat. Add the minced garlic and sauté for 1-2 minutes, until fragrant. Be careful not to burn the garlic.

Next, pour in the heavy cream and bring the mixture to a gentle simmer. Stir occasionally and cook for 3-4 minutes, allowing the sauce to thicken slightly.

Once the cream has simmered, add the grated parmesan cheese and shredded mozzarella cheese (if using). Stir continuously until the cheeses melt and the sauce becomes smooth and creamy. Season the sauce with salt and pepper to taste. If the sauce becomes too thick, you can thin it out with the reserved pasta water, adding a little at a time until the desired consistency is achieved.

4. Combine the Pasta and Sauce

Add the drained fettuccine pasta directly into the skillet with the Alfredo sauce. Toss the pasta in the sauce until it is fully coated. If the sauce seems too thick, gradually add the reserved pasta water to reach your preferred consistency.

Once the pasta is well-coated in the creamy Alfredo sauce, add the sliced chicken and toss to combine. Let the mixture simmer for another minute or two, allowing the chicken to heat through and absorb some of the flavors of the sauce.

5. Garnish and Serve

Transfer the Fettuccine Alfredo with Chicken to serving plates. Garnish with freshly chopped parsley and an extra sprinkle of grated parmesan cheese, if desired. Serve immediately while the dish is hot and creamy.