Ingredients
- ¼ cup creamy peanut butter
- 1 tablespoon soy sauce
- 1 tablespoon brown sugar
- 2 teaspoons Sriracha, or more, to taste
- 2 tablespoons vegetable oil
- 1 ½ pounds flank steak, thinly sliced across the grain
- Kosher salt and freshly ground black pepper, to taste
- 1 green onion, thinly sliced
- 2 tablespoons peanuts, chopped