01 -
Pat filet mignon steaks dry with paper towels. Season both sides evenly with sea salt and black pepper. Allow to rest at room temperature for 20–30 minutes.
02 -
Heat olive oil in a cast iron skillet over medium-high heat until shimmering. Place steaks in the skillet and sear, flipping every 30 seconds, for 4–5 minutes total until a deep golden crust forms.
03 -
Reduce heat to medium-low. Continue flipping steaks every 30 seconds until desired internal temperature is reached, typically 130°F for medium-rare.
04 -
Add butter during the last minute of cooking, spooning the melted butter over steaks to enhance flavor.
05 -
Transfer steaks to a cutting board, tent loosely with foil, and rest for 5 minutes to allow juices to redistribute.
06 -
Slice filet mignon against the grain and serve with optional blue cheese sauce or an extra pat of butter.