Kung Pao Beef Stir Fry

Name: Kung Pao Beef Stir Fry
Prep time: 35 min
Cook time: 15 min
Total time: 50 min
Cuisine: Asian, Chinese
Ingredients: 4 tablespoons sesame oil (divided); 1 ½ pounds flank steak; 2 tablespoons cornstarch; 1 bunch scallions (divided); 1 large red bell pepper (seeded and chopped into 1 inch pieces); 10-15 Chinese Tien Tsin chilies (or thai bird’s eye chiles); 3 cloves garlic (minced); 2 tablespoons grated ginger; ¼ cup cooking sherry; 3 tablespoons low sodium soy sauce; 2 tablespoons black bean garlic sauce; 1 tablespoon Chinese black vinegar; 1 tablespoon Szechuan peppercorns; ½ cup roasted peanuts