Cook the Jacket Potato: Pierce the potato with a fork, wrap in a damp paper towel, and microwave for 6 minutes. Transfer to foil, brush with olive oil, season with sea salt, and air fry at 180°C for 55 minutes. Uncover and cook for another 10 minutes at 200°C for a crispy skin.
Prepare the Beef Mince: Heat a pan with a spray of olive oil, add the mince, and season with onion powder, garlic powder, salt, and Worcestershire sauce. Cook until browned and golden.
Make the Cheese Sauce: Melt the burger cheese, Red Leicester, and milk together until smooth. Let it cool slightly to thicken.
Assemble the Potato: Cut a crisscross in the potato, mash the inside with butter, salt, and pepper. Add the cooked mince, pour over the cheese sauce, and sprinkle with chopped onion and pickles. Drizzle with mustard and ketchup, then serve hot.
