1.Remove rind from spareribs and trim excess fat
2. Combine tomato paste, hoisin and chilli sauces, lemon juice and honey
3. Place ribs in a large, shallow dish
4. Pour over marinade
5. Store in refrigerator, covered with plastic wrap, for 2 hours or overnight, turning occasionally
6. Drain meat, reserving the marinade
7. Place the ribs on a lightly oiled grill or flatplate
8. Cook over a medium heat for 20 minutes or until tender, turning occasionally
9. Heat the remaining marinade in a small pan over low heat until very hot; do not boil
10. Pour over the ribs just before serving
11. Sprinkle with the toasted sesame seeds