Creamy, Cheesy Fettuccine Alfredo (with Chicken)

  • Author: Chew Out Loud
  • Yield: 8 1x
  • Category: main dish


You’ll love the creaminess, cheesiness, and deliciousness of this Chicken Fettuccine Alfredo!



  • 1 lb boneless skinless chicken breasts or thighs, cubed
  • 2 TB olive oil
  • 4 TB salted butter
  • 8 cloves of garlic, minced
  • 1 tsp kosher salt
  • 1 tsp fresh ground black pepper
  • 3 tsp onion powder, divided
  • 1 lb fettuccine pasta
  • 1/3 cup all purpose flour
  • 3 cups whole milk
  • 1 cup half and half
  • 56 oz Parmesan cheese wedge, grated (1 cup grated, packed)
  • 8 oz sharp white cheddar cheese wedge, freshly grated
  • 2 cups broccoli florets
  • 1/2 cup sour cream
  • additional salt and pepper to taste


  1. Dry cubes of chicken with paper towels. Add half of the minced garlic, salt, pepper, and 1 tsp onion powder into the chicken, and mix well.
  2. In a heavy large skillet, heat olive oil about 30 seconds, and add seasoned chicken. Saute until chicken is almost cooked through. Add broccoli florets to the chicken and continue cooking until chicken and broccoli are fully cooked. Set aside.
  3. Bring large heavy pot of well-salted water to boil. Add pasta and cook just until al dente, according to package instructions. Do not cook beyond al dente. Drain pasta and set aside.
  4. Saute the butter in now empty pot. Add remaining garlic and cook about 1 minute. Stir in flour and stir constantly for 2 minutes or until smooth.
  5. Carefully add the milk, half and half, and remaining onion powder. Continue to stir constantly until sauce is smooth and creamy, on medium-low heat for about 5 minutes. Take your time, to ensure the sauce is not grainy. Sauce should become thickened and smooth.
  6. Stir in Parmesan and white cheddar cheeses, continuing to stir until cheeses are melted. Add any additional salt and pepper to taste.
  7. Stir in sour cream and chicken/broccoli mixture to the sauce, combining well.
  8. Toss cooked pasta with sauce, and serve immediately.