01 - Melt unsalted butter in a large deep skillet over medium heat. Add minced garlic and cook for 1 minute, stirring constantly, until fragrant.
02 - Pour in chicken broth, heavy cream, salt, and pepper. Stir well and bring mixture just to a simmer.
03 - Add dry fettuccine to the skillet, ensuring pasta is mostly submerged. Stir to prevent sticking.
04 - Reduce heat to low. Cook uncovered, stirring frequently, for 15–18 minutes or until pasta is al dente and sauce has thickened.
05 - Remove skillet from heat. Stir in grated Parmesan cheese until melted and sauce is creamy and cohesive.
06 - Sprinkle with chopped parsley if desired. Serve hot immediately.