The player can come to the restaurant and supply two ingredients to Dyllis, which she combines into one item. Dyllis could be described as paralleling the characteristics of Zess T., a cook from Paper Mario: The Thousand-Year Door, for her irritable and gruff personality.
Dyllis's name derives from "dill", a herb which seeds are used as a spice in cooking. Another analogy is "dill pickle", since her attitude is sour. She also has a stereotypical German accent, one that is typically given to German chef characters just like a similar character, Chef Torte.