What's the secret ingredient to your happiness?
Laura Griffin is preparing for an empty nest. The thought of Number 11 Lark Hill falling silent - a home usually bustling with noise, people and the fragrant smells of something cooking on the Aga - seems impossible. Laura hopes it will mean more time for herself, and more time with her husband, Dom.
But when an exposed secret shakes their marriage, Laura suddenly feels as though her family is shrinking around her. Feeling lost, she turns to her greatest comfort: her grandmother's recipe box, a treasured collection dating back to the Second World War. Everyone has always adored Laura's jams and chutneys, piled their sandwiches high with her pickles . . . Inspired by a bit of the old Blitz spirit, Laura has an idea that gives her a fresh sense of purpose.
Full of fierce determination, Laura starts carving her own path. But even the bravest woman needs the people who love her. And now, they need her in return . . .