Cook 2 tablespoons butter in a skillet over medium heat
Add 2 minced garlic cloves and cook for 30 seconds
Pour in 1 cup heavy cream
Stir in 1 cup grated Parmesan cheese
Add 1/2 teaspoon salt
Add 1/4 teaspoon black pepper
Simmer for 3 to 5 minutes until thickened
Add cooked chicken pieces
Stir until the chicken is coated
Toss with cooked fettuccine if desired