Preheat oven to 160 degree c.
While the oven is heating, combine the brown sugar, chilé flakes, cumin, salt, and pepper.
Brush each fillet with 1/2 teaspoon of the garlic infused oil, then rub each fillet with about 1/2 tablespoon of the spice mixture.
Roast, until charred, 4 to 5 minutes.
Flip the fish and cook another 3-4 minutes for medium-done fish. For well-done fish, cook an additional 1 to 2 minutes.
Remove to a platter and serve immediately with lemon wedges.
