To prepare spice mixture, combine first 5 ingredients in a small bowl.
To prepare glaze, combine rind and next 8 ingredients (rind through cinnamon) in a saucepan. Bring to a boil. Reduce heat, and simmer 10 minutes. Strain through a sieve; discard solids.
Rub the fillets with spice mixture. Cover; refrigerate 10 minutes. Place, skin sides down, on a grill rack coated with cooking spray. Grill 16 minutes, covered, or until fish flakes easily when tested with a fork, basting occasionally with glaze. Remove skin; discard. Arrange fillets on a platter; sprinkle with sliced onions and sesame seeds.
This is my all time favorite salmon recipe. My nephew who has been visiting us since he was 12 years old, and is now 25, and he always requests that I make this salmon recipe. Now, his younger brother has the same request, when he visits.