Not Just Jam is a collection of over 90 recipes by farmer Matthew Evans, celebrating the art of preserving seasonal produce. The book is perfect for foragers, home cooks, and anyone passionate about turning surplus fruit and vegetables into delicious preserves and sauces. It features easy-to-follow recipes like pear and cardamom jam, beetroot relish, and apple cider mustard, encouraging readers to make homemade food to share (that's next years gifts sorted!).