Vietnamese Caramelized Salmon (ca Hoi Kho)

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Combine the salmon, fish sauce, and pepper in a bowl. Coat the salmon with the pepper and fish sauce. Marinate for 15 minutes. For the best flavor, marinate for at least an hour.
Once done marinating, separate the marinade from the salmon. Set the marinade aside for later.
Combine dark brown sugar and oil in a large pan. Heat and stir over medium high heat until the sugar melts and becomes a dark brown color.
Add the salmon. Sear until brown on both sides (~30 seconds per side).
Add the ginger, shallots, and garlic. Cook for 30 seconds.
Lower the heat to low. Add the marinade you reserved from step 2. Simmer on low for 10 minutes. Flip the salmon after 5 minutes so both sides get even caramelization.
Add the green onions. Stir in the green onions and serve!