Chueco bets Amanda that he is a better cook than she. While trying to cook an Argentinean-style barbecue with the help of Juan, he invents a new sauce, which is a huge success among Martín's schoolmates. With the boy's help, they set up a business and start cooking day and night. But Sofía, Juan's girlfriend, is about to discover that the family's pet is a talking chimpanzee.