To make marinade, mix chillies, garlic, spring onions, ginger, vinegar, soy sauce and honey in non reactive dish. add ribs, toss to coat, cover and marinate in refrigerator for at least 4 hours.
Drain ribs and reserve marinade. Cook ribs, basting occasionally with reserved marinade on a preheated hot barbecue grill for 8 to 10 minutes or til ribs are tender and golden. Put on serving platter; cover and keep warm.
Put remaining marinade in pan, add onions, parsley, stock and lemon juice and bring to a boil. Reduce heat and simmer for 15 minutes or til sauce reduces by half. Pour mixture into a food processor or blender and process to make a puree. With motor running, pour in hot melted butter and process to mix. Serve sauce with ribs. serves 8