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A jacket potato is a whole potato baked in its skin until the exterior is crisp and the interior is fluffy, typically served split open and topped with fillings like butter, cheese, beans, or tuna mayonnaise. It is a classic and comforting staple of British cuisine, commonly found in homes, pubs, and high-street food shops.
As a starchy vegetable, it is high in carbohydrates and provides a good source of fibre, potassium, and vitamin C, with the skin contributing significantly to its nutritional value. A medium-sized plain baked jacket potato contains roughly 150-200 calories, but this increases substantially depending on the chosen toppings.
Culturally, it evolved from a simple, affordable working-class meal into a versatile lunchtime staple, with its popularity cemented by the rise of dedicated potato topping bars in the 1980s. Nutritionally, eating the skin is key, as it contains much of the fibre and nutrients, making it a more wholesome choice than peeled potato dishes.