Method
- Heat a wide skillet over medium-high heat for a minute, then add the oil. Add the mushrooms in a single layer. Leave them alone long enough to pick up color before tossing.
- When the mushrooms shrink and brown at the edges, add the butter. As it foams, pour in the soy sauce and grind in black pepper. The pan should smell savory and a little sweet.
- Add the rice and fold gently. If the grains are tight from the refrigerator, splash in a spoonful of water, cover for 60 seconds, then uncover and toss again until the rice loosens.
- Turn off the heat. Add most of the scallions, sesame oil, and sesame seeds. Taste and adjust with another small dash of soy sauce if the rice needs it.
- Serve immediately. A fried egg, roasted tofu, or cucumber salad fits well next to it, but the bowl also works on its own.