Remove the rough peel from the pineapple and slice into rectangular pieces

Place the pineapple pieces in a non-stick frying pan over a medium heat together with the sunflower oil and cook so that the pineapple turns golden brown

Remove from the heat and pour the rum over the pineapple letting it mix with the pineapple juice in the frying pan

Place the golden pineapple pieces in a dish and pour over the remaining liquid from the pan and serve.