Chef Ian Theasby from Bosh has shared his preferred method for achieving the perfect jacket potato, which does not involve an air fryer. He emphasizes the importance of oiling the skin with olive oil and seasoning with salt before roasting at 200°C for about an hour to achieve a crispy exterior and fluffy interior. For those short on time, he recommends microwaving the potatoes for 10 minutes before finishing them in the oven. Theasby, along with his partner Henry Firth, recently released their eighth cookbook, 'More Plants,' which includes 90 plant-rich recipes designed for quick preparation. One standout recipe is for pickle bean-stuffed jacket potatoes, showcasing their focus on healthful ingredients without restrictions.