Preheat the oven to 250ºF and line a rimmed baking sheet with foil and then rub with a bit of avocado oil to prevent sticking. Lay the salmon on the prepared sheet and rub with jerk seasoning.
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 fish bakes, prepare the sauce. Stir the sour cream, coconut cream, stevia, zest, coconut extract, and lime juice in a small pot. Heat over low heat and do not boil. Stir until evenly combined and smooth. Adjust sweetener and salt to taste.
Toast the coconut in a large pan over medium-high heat, stirring occasionally until golden, transfer to a bowl and set aside.
To serve, drizzle the salmon with sauce and sprinkle with toasted coconut.