In a large resealable plastic bag, combine the flour blend, salt and pepper. Add the chicken breast strips and shake well to coat.
Heat the canola oil in a large non-stick wok or skillet over medium-high heat. Add the chicken and brown well, about 3 to 4 minutes a side.
Reduce heat to medium and transfer chicken to a plate and set aside. Add the soy sauce and sugar to the wok or skillet and stir and cook until sugar is dissolved. Stir in the sesame seeds and sesame oil. Add the chicken back into the pan and toss gently to coat. Remove from heat, stir in the chives and serve.