Portion your halibut by cutting it with a sharp knife into 3 or 4 pieces. A serving size of fish is 3 to 6 oz so portion it depending on the particular size of your filet. Brush both sides of each with the liquid mixture.
Heat pan until it is sizzling hot (a drop of water sizzles and immediately evaporates when it hits the pan. Sear the halibut for 90 seconds on each side. Reduce the heat to medium and cook each side for an additional 2-3 minutes, until the fish can be easily flaked with a fork.