Stir together the orange juice, plum sauce, mustard, ginger,
vinegar and red pepper flakes. Put the chicken into a glass pan
and add the marinade. Turn to coat the chicken. Cover and
refrigerate at least 1 hour, or overnight.
Remove the chicken from the marinade and discard the marinade. In
a large nonstick skillet, heat the oil over medium heat. When hot,
add the chicken. Cook about 4-5 minites per side, or until the
chicken is no longer pink when cut into the center.
* The Chinese plum sauce can be found in the Asian food section of major
supermarkets.