Chicken and Broccoli Stir Fry

In a medium bowl combine chicken stock, soy sauce, tomato paste, hoisin sauce, rice vinegar, brown sugar, ginger, chili paste and 1 tablespoon cornstarch. Stir until blended and set aside.

Generously spray a large skillet or wok with nonstick cooking spray. Toss chicken with remaining 1 tablespoon cornstarch, salt and pepper. Add coated chicken to skillet and cook over medium heat, stirring frequently until chicken is cooked, no longer pink in the center and juices run clear, about 7-10 minutes. Add broccoli and garlic and cook until broccoli is slightly tender, about 3-4 minutes. Stir in sauce, reduce heat to low and cook until sauce is heated, about 2 minutes. Remove from heat. Garnish with sesame seeds and/or scallions and serve.