Cut loins lengthwise then crosswise into cubes. Mix with marinade ingredients and leave to stand for 1 hour.
Heat a large frypan. Add 1 - 2 tbsp oil and heat again.
Brown meat evenly until nicely browned or microwave on High for 5 minutes, then medium for 5 minutes or until meat is tender
Add a little cornflour mixed to a paste with cold water. Reheat to thicken. Serve on rice, with cucumber, celery, onion and tomato salad. Garnish with celery leaves.