This one is from Best Bites site. It had a really good flavor and was really easy to make.
1/4 C soy sauce
1/4 C seasoned rice wine vinegar
1 T honey
1T sesame oil
1 t ground ginger
1 t coriander
4 cloves garlic
2-4 t Sriracha chili sauce*
1 1/2 lb flank steak
Grab a bowl for your marinade. Zest your orange and add all of the zest to the bowl. Then cut the orange in half and add all of the juice as well. You should have at least 1/4 C orange juice and anything more than that is just fine. To the orange mixture, add soy sauce, vinegar, honey, sesame oil, ginger, coriander, and garlic. Then add Sriracha to your liking. I've found that once these are marinaded and cooked, the spice mellows quite a bit. I add 2t Sriracha and it's mild enough that my toddler gobbles them up. It's not even really spicey, just flavorful. So if you like heat, I'd do more like 3-4 teaspoons of Sriracha. Whisk the marinade so everything is combined.
Take the flank steak and slice it across the grain into about 1/4" slices.
When you're ready to get cookin' preheat your grill. Then take your skewers (pre-soaked if you're using wood/bamboo ones) and thread on the strips of meat, just like you're stitching.Place them on the grill. These cook really fast. Overcooked flank steak will be tough and chewy, so don't over do it! They should only take about 3-4 minutes on each side. Flip half way through.
Now these don't only cook fast, they cool fast. So get the rest of your meal all ready, set the table, gather the kids, etc. Grill these up at the last minute so you can serve them hot off the grill, literally.