Preheat oven to 425 degrees.
Rinse the salmon; cut the salmon fillet into 2-3 large pieces. Dry the sides with a paper towel and place on a large parchment-lined baking sheet.
In a food processor, finely chop the macadamia nuts. Combine the nuts, brown sugar, lime juice, dill, and pepper together in a small bowl. Spread on top of the salmon, pressing firmly to pack it down.
Bake at 425 for 12-15 minutes or until the fish is done. Don’t overcook the salmon. Use the back of a spatula to press down on the salmon to feel if it’s cooked. If the spongy feeling is gone, and the salmon is firm, then it is cooked!
Remove from the oven; let sit for 3-5 minutes. Serve.