For this, you will need a stainless steel pan, sorry. If you don’t own stainless steel please see this post to get a primer
Heat up the pan at medium-high heat, not max heat here but you want some good heat. When it’s hot* , put the oil in, immediately you should see it “swirling” in the hot pan.
When is the pan hot? With time you will know just putting your hand above, if not, wet your finger and dump a water droplet in the pan. If it swirls around and disappears it’s ready.
While the pan heats up, prepare the salmon :
1-Wash under cold water the fish
2-Using paper towel, dry it
3-Season the top of the fish
Pstt try steak seasoning on salmon, its really good
Tip: if it’s a thick piece of filet you have, you can flip the fish over and do 1 or 2 cuts in the skin, maybe 1/4 inch deep. This will prevent the fish from curling but will also help cook the center of it.
Pan is hot? Time to put the fish in the pan
Put the fish in the pan with the skin on the top. The oil is clean so this will give a nice sear to the filet. After about 5 minutes, turn it over, skin on the bottom of the pan for about another 5 minutes. Note that you will need to adjust the cooking time to your taste ( medium or well-cooked ) but also the filet thickness, mine was over an inch thick and was cooked medium in the very center. That’s it, you flip it only once, don’t play with the fish.