Farideh is making Beef Wellington, a savory beef tenderloin wrapped in puff pastry with layers of prosciutto, dijon mustard, and a mushroom paste. This show-stopping recipe comes together surprisingly easily, with the help from store-bought puff pastry. Farideh sears the beef tenderloin before coating it in dijon mustard, then wraps it in layers of prosciutto, a layer of duxelle, a preparation of sauteed mushrooms with shallots and garlic, and the pastry dough. She bakes it in the oven and the result is a golden flaky crust with a tender roast beef center.