Make the rub. Combine the garlic powder and kosher salt in the small bowl. Place the steak on a work surface, and sprinkle the rub on both sides of the steak, and gently rub it into the steak. Let the steak sit with the rub at room temperature for 10 to 15 minutes.
Sear the steak. Heat an oven proof skillet, preferably cast iron, on medium high heat. Coat with neutral oil such as canola or avocado oil. When the skillet is hot, sear the steak on one side for about 2 minutes, getting it nicely browned. Turn the steak over and sear on the other side for about 1 minute.
Roast the steak. Move the skillet with the Denver steak to the oven. Roast for 8 to 9 minutes for medium rare (recommended). Check for doneness – an internal temperature of 125 to 130°F is good for medium-rare. Remove when done, and let rest for 5 minutes before slicing and serving.
Serve the steak, with sauce if you like. We have enjoyed the Denver steak with chimichurri sauce and a simple no cook BBQ sauce.
Notes
Shopping for Denver steak: I’ve typically received Denver steak through our local meat share program, where it comes packaged as two steaks totaling around 1 to 1½ pounds. Depending on where you shop, you may find individual steaks or different package sizes.
Alternative cuts that work: I’ve also used this same cast iron and oven method successfully with chuck eye steak.