Beef with Black Bean Sauce

Ingredients (18)

• 1 1/2 lbs beef sirloin (See Note 1)
• 1 tbsp vegetable oil
• 3 tbsp cornstarch
• 1 tsp dark soy sauce (See Note 2)
• Sauce:
• 1/4 cup beef broth
• 3 tbsp black bean paste
• 2 tbsp rice wine vinegar
• 1 tbsp dark soy sauce (See Note 2)
• 2 cloves garlic minced
• 2 tsp ginger paste
• 1 tsp red pepper flakes
• 1 tsp sesame oil
• Stir Fry:
• 2 tbsp vegetable oil
• 1 medium white onion
• 1 lb asparagus woody ends trimmed off
• 4 stalks celery