At the start of her career, Samin Nosrat noticed that amid the chaos of the kitchen there were four principles her fellow chefs would always fall back on: Salt, Fat, Acid and Heat. By mastering them, Samin found the confidence to trust her instincts in the kitchen and cook delicious meals with any ingredients. Whether you want to balance your vinaigrette, perfectly caramelise your roasted vegetables or braise meltingly tender stews, Samin's canon of 100 essential recipes and their dozens of variations will teach you how.