For the beef
01 -
1 lb (450 g) flank steak or sirloin, thinly sliced against the grain
02 -
1 tablespoon low-sodium soy sauce
03 -
1 tablespoon cornstarch
04 -
1 tablespoon neutral oil
05 -
1/4 teaspoon black pepper
For the sauce
06 -
1/4 cup (60 ml) low-sodium soy sauce
07 -
2 tablespoons oyster sauce
08 -
1/4 cup (60 ml) water or low-sodium beef broth
09 -
1 tablespoon packed brown sugar
10 -
1 tablespoon rice vinegar
11 -
1 teaspoon cornstarch
12 -
1 teaspoon toasted sesame oil
13 -
1/2 teaspoon chili flakes, optional
For the stir-fry
14 -
2 tablespoons neutral oil, divided
15 -
3 cloves garlic, minced
16 -
1 tablespoon fresh ginger, finely grated
17 -
1 small yellow onion, thinly sliced
18 -
1 red bell pepper, thinly sliced
19 -
3 scallions, cut into 2-inch pieces
20 -
1 teaspoon toasted sesame seeds, optional
21 -
Steamed rice or noodles, for serving