From Oxford, David moved to the Open Air Theatre in Regent's Park, London, the following year. She rented rooms in a large house near the park, spent a generous 21st birthday present on equipping the kitchen, and learned to cook. A gift from her mother of "The Gentle Art of Cookery" by Hilda Leyel was her first cookery book. She later wrote, "I wonder if I would have ever learned to cook at all if I had been given a routine Mrs Beeton to learn from, instead of the romantic Mrs Leyel with her rather wild, imagination-catching recipes."