Schischi is excited: Her great hero, master chef Cornishon from Paris, personally organizes a cooking competition in Oberfimmel. Quickly Schischi finds a complicated recipe, with which the victory is almost certain: The food of the gods! One ingredient is particularly important: the "shining vanilla truffle". Mrs. Bumfidel does not have any of the rare mushrooms, but in the forest of Oberfimmel they might find a vanilla truffle. But the Gringos are already there...