01 - Bring a large pot of salted water to a rapid boil. Add pasta and cook until al dente following package recommendations. Reserve 1/2 cup of pasta water prior to draining.
02 - In a large skillet over medium heat, melt the butter. Add minced garlic and sauté for 1 minute until aromatic but not browned.
03 - Pour in the heavy cream and stir gently. Bring to a gentle simmer and cook for 2 to 3 minutes for flavor development.
04 - Reduce heat to low. Whisk in Parmesan cheese gradually until the sauce is smooth and thickened. Season with black pepper, salt, and nutmeg if desired.
05 - Add drained pasta to the sauce and toss thoroughly to coat. Adjust consistency with reserved pasta water, adding one tablespoon at a time if necessary.
06 - Remove from heat. Sprinkle chopped fresh parsley and extra grated Parmesan over the top prior to serving.