What additional flavoring is drizzled on top of the Mac + Cheese?

Truffle oil is drizzled on top of the Mac + Cheese to elevate its flavor profile, adding a rich, earthy note that complements the dish's creamy texture. The use of truffle oil enhances the overall experience by providing a gourmet touch, making the classic comfort food more sophisticated. It is known for its distinctive aroma and taste, providing a luxurious dimension that contrasts beautifully with the cheesy base of the dish. This flavor enhancement is a popular choice in many culinary applications, particularly in upscale dining settings like Yard House, where the goal is to create a memorable dining experience.