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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 with a variety of toppings like butter, cheese, beans, or tuna mayonnaise. It is a classic and comforting staple in British cuisine, often enjoyed as a quick lunch or casual dinner.
As a carbohydrate-rich food, a medium jacket potato provides a good source of energy, fibre, and vitamin C. Depending on the toppings, a plain potato with a small amount of butter contains roughly 250-300 calories.
The 'jacket' refers to the skin, which is left on during cooking to act as a natural, edible container for the fluffy interior. Nutritionally, baking with the skin on helps retain more of the potato's fibre and nutrients compared to peeling and boiling.