From Giant Eagle by Eating Well
Whisk water, vinegar, black bean-garlic sauce, rice wine (or sherry), cornstarch and crushed red pepper in a small bowl until combined.
Heat oil in a large nonstick skillet over medium-high heat. Add salmon and cook, stirring gently, for 2 minutes. Add bean sprouts, scallions and the sauce mixture (the pan will be full). Cook, stirring, until the sprouts are cooked down and very tender, 2 to 3 minutes.