In a small bowl, combine blackened seasoning. Rub seasoning all over the salmon generously.
Heat oil in a large nonstick skillet over medium-high heat. Once the skillet is nice and hot, carefully add salmon.
Cook the salmon for about 3-4 minutes until the bottom is blackened(not burnt, see photo). Flip salmon over and cook for another 3-4 minutes until blackened. The salmon should be cooked through to an internal temperature of about 125 degrees.
When done, remove salmon from skillet. Squeeze a little lemon juice over cooked salmon.
Serve blackened salmon with your favorite side dishes, on a salad or on tacos!