While cooking at Chez Panisse at the start of her career, Samin Nosrat noticed that amid the chaos of the kitchen there were four key principles that her fellow chefs would always fall back on to make their food better: Salt, Fat, Acid and Heat.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.