Start by melting butter and garlic in a large pot over medium heat.

Gradually add the remaining ingredients, whisking thoroughly. Lower the heat to a simmer.

Whisk out any lumps and cook until the cheese is fully integrated. Let it simmer for at least two minutes.

Season with salt and pepper to your liking, then pour over freshly cooked fettuccine pasta. It's delicious on its own, but you can also add cooked chicken breast for an extra savory touch! Enjoy!