Whether you're rustling up some crispy roasties or sizzling something on the hob, cooking oils are essential. Selecting the correct oil is one of the biggest head-scratchers in home kitchens, particularly when it comes to unlocking flavour and managing heat. Barry D'Arcy, private yacht chef and founder of Ocean Earth Chefs, has revealed his approach to oils in the kitchen. He said: "Most people think oil is a simple ingredient, but it guides the entire cooking process. Every oil behaves