Heat a wok or large frying pan over medium-high heat. Add 1 teaspoon sunflower oil and swirl around the pan. Add 1/2 small onion, sliced and 1/4 carrot, sliced and stir-fry for 20 seconds, then add the cooked crispy pork pieces and 1 generous teaspoon chopped garlic in oil. Season with 1 generous teaspoon salt and pepper mix, add 1 spring onion, sliced and stir-fry for 20 seconds. Finish with 1/2 teaspoon crushed chilli flakes and 2 teaspoons rice wine and mix well once more.