1/2 cup unsalted butter
2 cups heavy cream
2 cups freshly grated Parmesan cheese
2 cloves garlic, minced
1/2 teaspoon salt
1/4 teaspoon black pepper
1/4 teaspoon nutmeg, optional
Melt butter in a saucepan over medium heat
Add garlic and cook for 30 seconds
Pour in heavy cream and stir
Simmer for 3 to 5 minutes
Reduce heat to low
Whisk in Parmesan cheese until smooth
Add salt, black pepper, and nutmeg
Stir until sauce thickens
Toss with cooked pasta immediately