At least 2 hours before ( or longer) combine all of the flank steak ingredients in a ziploc bag and marinate in the fridge. To cook: Heat a grill, grill pan or broiler over hot coals/heat. Sear steak about 5-7 minutes per side or until internal temperature is 125 degrees. Set aside, cover with foil and rest for 5 minutes or so. Slice thin, diagonally, and across the grain to serve.For Bok Choy: Saute garlic and ginger in oil for 3 - 4 minutes over medium high heat. Add Bok Choy to the pan and toss to coat in the oil. Cook for a couple of minutes and then add water to the pan and cover. Cook for 5- 10 minutes until bok choy is tender. Drizzle with soy sauce and sesame or truffle oil.For rice: While coals are heating, combine ingredients in a sauce pan and simmer, covered for 15 minutes or until all the liquid has absorbed. Let stand for 5 minutes and fluff with a fork and serve.To serve: pile bok choy on top of rice and the steak on top of the bok choy. Drizzle all with a little soy sauce to serve!