Step 1

Heat a large skillet (preferably cast iron) over high heat until screaming hot. You might want to turn your fan on or open a window for this one!

Step 2

Meanwhile, pat the tilapia filets dry with a paper towel. Coat each in 1 tablespoon of the blackening seasoning, pressing it onto the fish so it sticks on every part of the surface.

Step 3

Melt butter (4 tablespoons) in the skillet. Add the tilapia and cook for 2 minutes on each side, or until fish is fully cooked and flakes apart easily with a fork. If you need to cook it in two batches, use half the butter for each batch.

Step 4

Meanwhile, mix the avocado, cucumber, parsley, lemon juice, and kosher salt to taste in a small bowl.

Step 5

Serve blackened tilapia with the avocado cucumber salsa, with more lemon wedges (optional).