Heat the oil in a saucepan. Fry the onion until it softens but don’t allow it to brown. Add the potato, milk and stock, and bring everything to a simmer. Cook for 10 mins or until the potato is soft, then gently squash some of the potato against the side of the pan to thicken the chowder. Add the prawns and sweetcorn, and cook for another 5 mins.

Meanwhile, spread the pitta with the garlic butter. Grill the pitta until it browns a little, then cut into strips. Serve the soup sprinkled with chives, if you like, with the garlic pitta on the side to dip.