Clean the mushrooms with cold water. Pat dry with a cloth or paper towel. Slice them if they are large. Cut the ends off.
3 cups Mushrooms
In a small bowl, whisk together the soy sauce, mirin, brown sugar, garlic powder, ginger powder, and the cornstarch slurry. Set aside.
¼ cup Low Sodium Soy Sauce, 2 tbsps Mirin, 2 tbsps brown sugar, 1 tsp garlic powder, 1 tsp ginger powder, ½ tbsp cornstarch slurry - mix 1/2 tbsp cornstarch with 1 tbsp water
Heat a large skillet or wok over medium-high heat. Add a splash of oil. Once hot, add the onions and set them off to the side and do not move them so they get a little searing.
1 tbsp avocado oil, ½ White Onion
Add the mushrooms to the other side and cook for 4 minutes, do not move them right away so they sear! Stir occasionally, until everything is browned and have released moisture.
Pour the teriyaki sauce over the mushrooms. Stir well to coat the mushrooms in the sauce. Let the mushrooms simmer in the sauce for 4 minutes.
If using, drizzle the sesame oil over the mushrooms and stir to combine. Remove the skillet from heat and sprinkle the mushrooms with sliced green onions, parsley, or sesame seeds. Serve right away and enjoy. 2 tsp toasted sesame oil - optional; adds a delicate nutty aroma, Green Onions , Sesame Seeds , Parsley