Today is National Grilled Cheese Sandwich Day … and a New York City restaurant that's known for its exorbitantly priced menu items is bringing back the world's most expensive grilled cheese sandwich. Serendipity 3 announced that its Quintessential Grilled Cheese will be back on the menu for a limited time starting today. The $214 sandwich, which has been officially recognized by Guinness World Records, is made with French pullman champagne bread covered in grass-fed white truffle butter. Between the slices of bread is Caciocavallo Podolico cheese. The sandwich is then toasted, and the edges are adorned in 23-karat edible gold. It comes with a side of South African lobster tomato bisque. The sandwich is made with such care and precision that it must be ordered 48 hours in advance. Just give me some Kraft singles between two slices of white bread and I'm good.