Cook Controller! is a magazine story.
Sometimes, the Fat Controller swaps his top hat for a chef's hat and apron. He enjoys cooking meals for his wife and grandchildren and often cooks them sausage and mash.
The next day, Gordon is about to set off with the express, but the chef from the dining car had phoned to say he had a bad cold. The Fat Controller wonders where he can get a chef, but then decides that he can do it. Unfortunately, without his cookery book, the only thing the Fat Controller can remember how to cook is sausage and mash. So that's what he does and all the passengers love it. All the cooking makes the Fat Controller feel hungry and he sits down to eat some sausages and mash, too.