A "virtual alphabet soup of letters" is how Guy Fieri describes the game known as ABC, which requires chefs to feature ingredients that start with the letter drawn out of his jar. When judge Melissa d'Arabian drew the letter F for pro chefs Alex Guarnaschelli, Cat Cora, Marc Murphy and Marcel Vigneron, the ingredients in their dishes varied from fennel and feta cheese to filet mignon, flatbread and farro.