Ingredients
1 pound skirt steak, cut into 1/2-inch-thick slices
4 teaspoons cornstarch
1/2 cup low-sodium chicken broth
2 tablespoons minced fresh ginger (from a 2-inch piece)
2 tablespoons black-bean garlic sauce, such as Kikkoman or Lee Kum Kee
1 teaspoon sugar
2 teaspoons toasted sesame oil
1/4 cup vegetable oil
4 cups small broccoli florets (from 1 head)
3 scallions, white and light-green parts thinly sliced (1/2 cup), plus darker greens, sliced, for serving
Cooked rice, for serving
Preparation
Pat meat dry, then toss with 3 teaspoons cornstarch. Stir together broth, ginger, black-bean sauce, sugar, sesame oil, and remaining 1 teaspoon cornstarch in a bowl. Measure 2 tablespoons water in a separate small bowl and set aside.
Heat a large, heavy skillet (preferably cast iron) or wok over high for 3 minutes. Swirl in 2 tablespoons vegetable oil. Working in batches to avoid crowding pan, brown meat, about 1 minute per side. Transfer to a plate.
Swirl in remaining vegetable oil and add broccoli. Cook, stirring occasionally, until broccoli begins to brown, about 3 minutes. Add reserved water and toss until broccoli is bright green and tender, 1 to 2 minutes more.
Add white and light-green parts of scallion to skillet along with meat and any accumulated juices. Stir in black-bean-sauce mixture and toss until evenly coated and sauce has thickened, about 30 seconds. Serve with rice, sprinkled with scallion greens.