Creating Garlic Butter Chicken Pasta is a joyous and straightforward process. Follow these steps:

1. Cook the Pasta: In a large pot of salted boiling water, cook the fettuccine according to package instructions until al dente. Drain and set aside, reserving about 1/2 cup of pasta water.
2. Prepare the Chicken: While the pasta cooks, season the chicken breasts with salt and pepper.
3. Sauté the Chicken: In a large skillet over medium-high heat, heat the olive oil. Add the chicken breasts and cook for about 5-6 minutes on each side, until golden and cooked through. Remove from the skillet, let it rest, and slice into strips.
4. Add Garlic: In the same skillet, reduce the heat to medium. Add the minced garlic and sauté for about 1 minute until fragrant, being careful not to burn it.
5. Make the Sauce: Incorporate the butter into the skillet until melted. Pour in the chicken broth and bring to a simmer.
6. Add Cream and Cheese: Slowly whisk in the heavy cream and Parmesan cheese, stirring until the sauce thickens. If the sauce is too thick, gradually add reserved pasta water until the desired consistency is achieved.
7. Combine Pasta and Chicken: Add the cooked pasta and sliced chicken back into the skillet. Toss until well coated in the garlic butter sauce.
8. Season and Serve: Taste and adjust seasoning with salt, pepper, and red pepper flakes if desired. Serve hot, garnished with fresh parsley.

Following these steps will guide you in creating a delightful Garlic Butter Chicken Pasta that everyone will love.