Preheat your oven to 425*F. Heat a heavy skillet over medium-high heat.
Season your steak with salt & pepper.
Add the steak to the skillet and cook for 2-3 minutes per side. The steak should easily release from the skillet.
Transfer to the oven for 5-10 minutes depending on the thickness of the steak. (Mine took 8 to get to medium, which is about 160*F)
Carefully remove the steak from the skillet. Remember that the skillet will be really hot, so use an oven mitt.
Put the skillet back on the stove and heat over medium. Add the butter and melt.
Add the mushrooms, and cook stirring occasionally for 7 minutes until their juices release
Stir in the broth, scraping up any browned bits on the bottom of the pan.
Simmer for 5 minutes until most of the liquid has absorbed. Stir in ¼ cup bleu cheese
Slice the steak and serve with the mushroom sauce on top. Crumble the extra few tablespoons of cheese over the sauce and sprinkle with parsley if desired. Enjoy!
Notes
*Make sure your steak is room temperature. Take it out of the fridge at least 30 minutes before cooking.*This can get a little smokey, so you might want to turn on your exhaust fan for this recipe.*Delicious served with a baked sweet potato or regular potato, or roasted potatoes, or a cooked grain like quinoa or brown rice.*Use a piece of steak that isn't too thick. Recipe was tested using a 1 inch thick piece of top sirloin.*Per a reader's suggestion, a cast iron skillet is recommended. But don't feel like you have to use one if you don't have it :)