1. Combine the orange zest, orange juice, maple syrup and rice vinegar in a ziploc bag. Add salmon filets and marinate at least 30 minutes and up to 2 days.

2. After done marinating, remove salmon and shake off excess marinade. Place on precut squares of aluminum foil, salt & pepper both sides, top each filet with 2 slices of orange, and fold foil like an envelope to secure salmon.

3. Cook on preheated grill (or indoor grill grates) over medium high heat until salmon is cooked through, about 10 minutes.

4. While salmon is cooking, pour marinade into a small sauce pot and cook over medium low until the glaze has reduced by 2/3.

5. Remove salmon from foil packets and top with orange maple glaze.