If buying the whole piece, rinse it thoroughly to remove most of the red chilli-paste coating ... it up into smaller pieces. Stir-fry over a high flame until the pork starts to lose its pink ...
Add pork strips and stir-fry until browned; remove and keep warm. Add carrots, cook for 2 minutes. Add peppers, celery, and onion, cook for 3 minutes or until the vegetables are tender and crisp.
Heat a large frying pan until medium hot, add the oil, red onion and pepper and stir well. Fry for 2–3 minutes, until just softened. Turn up the heat and add the garlic, cooked pork, cumin ...