Transfer to a plate to rest. Step 2: While flank steak cooks, peel cucumber; cut in half and scrape out seeds, then slice widthwise into half-moons. Thinly slice green onion. Chop cilantro.
To get the inside scoop on how pro chefs measure doneness of ribeye, strip or flank, I spoke to Joe ... It's difficult to gauge color without cutting into the steak, which you don't want to ...