Thaw the the Wagyu flat iron steak as you see fit (see below under "Handling and Thawing" for deeper guidance.) We also suggest bringing thawed steaks to room temperature for 30 minutes or so.

We always recommend cooking Wagyu to no more than Medium Rare. But your oven might throw heat better than ours, or you might be at sea level while we're up past mile-high. So, for the love of all things holy - like your precious Wagyu - take our timing specs with a grain of proverbial salt. Use your common sense and maybe even a meat thermometer and don't take our word for gospel. 

Grill: Heat the grill to medium high. Season the steak with salt, at minimum, or anything else that floats your boat. Sear each side for a minute or two. We're looking for Maillard reaction - that's brown and crispy. Move steaks to a lower heat and cook for another couple maybe 4-5 minutes. Take off the heat and let rest for 5 minutes, if you can wait. Oven: Heat oven to 425 F. Heat a cast-iron skillet over high heat on stove, and add a pat of butter or oil. Season the steak as your heart desires. Same idea as above: sear each side for a minute or two until browned and then transfer skillet to the oven for a few minutes, maybe 4 or 5. Take out and let rest for 5 minutes. We dare you.