Fast and flavorful, this slow roast salmon stays tender and juicy. I like to serve this on a bed of shaved radish for a textural contrast. The bite from the radish also helps balance the sweet earthy flavor of the spice rub and the whole dish is brightened with a zesty lemon aioli that also adds richness.
Preheat the oven to 250ºF. Line a rimmed baking sheet with foil or parchment paper and grease with the avocado oil.
Combine all spices in a small bowl and sprinkle over the salmon. Place onto the prepared baking sheet. Bake at 250ºF for 20-35 minutes, or until the fish is just beginning to flake, or registers 120ºF inside. It will have a more raw appearance but be cooked at this point.
While the salmon bakes, prepare the aioli by stirring all the aioli ingredients in a small bowl. Set aside.