01 - Melt the unsalted butter in a medium saucepan over medium heat.
02 - Add the minced garlic and sauté for 1 minute until fragrant, avoiding browning.
03 - Pour in the heavy cream and bring to a gentle simmer while stirring occasionally.
04 - Lower heat to low and whisk in Parmesan cheese until fully melted and sauce is smooth.
05 - Add salt, black pepper, and nutmeg if using. Simmer for 2 to 3 minutes, stirring frequently until thickened.
06 - Remove from heat and stir in finely chopped parsley or chives if desired.
07 - Serve warm over pasta, chicken, or steamed vegetables.