Steak Teriyaki

Again...it would be lame to apologize again but I am sorry that I have been gone so long....
But here I am. And here is some tasty steak teriyaki!
I used a recipe from Simply Recipes for steak teriyaki. I mixed up the marinade recipe: 1/3C mirin rice wine, 1/3C sake, 1/3C soy sauce, 1T sugar, and 1T grated ginger. I actually probably used more ginger than the recipe calls for. I used an unfiltered sake from Oregon: Momokawa Pearl. I chose this one because it is one we like to drink and so only using 1/3C wasn't an issue because the rest of the bottle was happily consumed!
I let the flank steak soak in the marinade for a few hours and toward the end I also tossed in some locally grown shiitake mushrooms from our farm share. We skewered the mushrooms and grilled those and the flank steak on the grill.
While those were grilling, I cooked down the marinade to make the teriyaki sauce to serve over the meat.
We also had rice and sauteed spinach along with the steak and mushroom. Delicious!!