Bonefish Grill Macadamia Topped Dorado

1/3 cup creamy peanut butter
2 tablespoons coconut milk
1 teaspoon fish sauce
½ teaspoon chopped fresh chili pepper
1 teaspoon shredded fresh basil leaves
½ cup chopped Macadamia nuts
2 6-ounce portions mahi mahi
Salt and pepper
Pineapple Rum Sauce (see recipe below)

Combine the first six ingredients in a large bowl and blend well. Meanwhile, lightly rub gas or charcoal grill grates with an oiled cloth. Preheat the grill. Season the mahi mahi with salt and pepper and grill on one side for 5 minutes. Turn the fish over and top each portion with the reserved Macadamia nut topping. Continue grilling for 5 minutes, until the fish is cooked to taste. Serve with Pineapple Rum Sauce.