Cold smoking is tricky. Folks around here usually indirect heat. I use a small 30 gallon drum for a wood stove setting 6' away from a 4x4x4 plywood box with removable screened sides. The stove pipe was burried in dirt to cool the smoke. For basic cure half lots use half salt half brown sugar. Go from there. Rub the dry mix on to salmon filets or pieces. Place in large cake pans or such n refrigerate overnight. To a couple days. It will be wet when you remove it. Rinse lightly and place the fish on the dry racks. If you want to add flavor like white pepper or honey, put it on before you put on racks.
I believe it's important to let the outside of the fish dry and form a , can't remember name, but it will get glossy. A fan blowing on it helps. Then it's ready to smoke. Again cold smoking, start with small batch. The weather has the biggest effect. I had over 100 pounds of filets to cold smoke. It would not stop raining. Took days. And the fish took on a bitter almost sooty taste.
Now I use several big chief smokers. Takes 7-8 hours. In the winter I wrap heavy blanket around it to keep the heat up. If you want candied salmon I'd use the higher temperatures of a smokers like that big chief or similar. Easy to, tending a fire for days, yeah.
For a smoker. Use more brown sugar. And you can put some on the fish just before you place it on the rack to for the pellica. Remembered it think. It will get shiny. Don't over cook. Bigger pieces on bottom racks. Check web for safe temperatures. Probably near 135 or so. I just use my senses.
I kinda found that most folks never write their process down just do it.
For what I learned to be called squaw candy is a type of candied salmon. Cut filets into long narrow strips. Cure a bit in salt sugar mix. Hang strips in the sun to dry. They will get to being like little chew strips when dry. But last a bit and tasty
Best way is to get started. You can treat trout just like salmon also. I've done up some big slabs of fresh arctic char. Really good stuff. And hopefully you get to go fishing.
My beautiful wife n me hope to get 35 or more salmon to put up for the year. We really like to smoke the filets a bit then can it. Sooooo good right out of the jar