Cook the Pasta: Bring a large pot of salted water to a boil. Add fettuccine or spaghetti, and cook according to package directions until al dente, about 8-10 minutes. Reserve 1 cup of pasta water, then drain and set aside.

Sauté the Garlic: In a large skillet, melt butter over medium heat. Add minced garlic and sauté for 1-2 minutes until fragrant and lightly golden.

Make the Sauce: Pour in heavy cream, stirring to combine with garlic butter. Simmer gently for about 5 minutes until slightly thickened.

Add Cheese: Reduce heat to low and stir in freshly grated Parmesan, along with salt and pepper to taste. Stir until melted and creamy.

Combine Everything: Add the drained pasta to the sauce, tossing to coat. Add reserved pasta water as needed for consistency.

Serve: Plate the pasta and garnish with parsley. Serve hot.