1. Pat your salmon fillets completely dry and sprinkle all over with salt, including skin.
2. Spray a nonstick frying pan with cooking spray and cook the fillets skin side down over medium heat, until the skin is completely crispy and the fish is cooked about three-quarters of the way through, about 8-10 minutes. You’ll see quite a bit of rendered fish oil come out into the pan. When the skin is fully crispy, flip the fish over and cook until it’s finished, about another three minutes.
3. While the fish is cooking, combine the remaining ingredients in a small saucepan and bring to a bubble. Lower the heat and let simmer for another five minutes.
4. Serve the sauce under the fish, and serve the fish skin side up so it doesn’t become soggy.
If your fillets don’t all fit in one frying pan, cook it in batches and let the first batch rest, skin side up, in a 175- degrees- Fahrenheit- (80- degrees- Celsius)-oven until ready to serve.