1 1/2 cups water
2 Tablespoons orange juice
1/4 cup lemon juice
1/3 cup rice vinegar
2 1/2 Tablespoons soy sauce
1 Tablespoon grated orange zest
1 cup packed brown sugar
1/2 teaspoon minced fresh ginger root
1/2 teaspoon minced garlic
2 Tablespoons chopped green onion
1/4 teaspoon red pepper flakes
3 Tablespoons cornstarch
2 Tablespoons water
2 boneless, skinless chicken breasts, cut into 1/2 inch pieces
1 cup all-purpose flour
1/4 teaspoon salt
1/4 teaspoon pepper
3 Tablespoons olive oil
Pour into saucepan: 1 1/2 cups water, orange juice, lemon juice, rice vinegar, and soy sauce; set over medium-high heat. Stir in orange zest, brown sugar, ginger, garlic, and chopped onion. Bring to a boil. Remove from heat, and let cool 10 to 15 minutes.
Place chicken pieces into a resealable plastic bag. When contents of saucepan have cooled, pour 1 cup of sauce into bag. Reserve remaining sauce. Seal bag, and refrigerate at least 2 hours.
In another resealable plastic bag, mix the flour, salt, and pepper. Add marinated chicken pieces, and shake to coat.
Heat the oil in a large skillet over medium heat. Place chicken in skillet, and brown on both sides. Remove to paper towels, and cover with aluminum foil.
Wipe out the skillet, and add the sauce. Bring to a boil over medium-high heat. Mix together cornstarch and 2 Tablespoons water, and stir into sauce. Reduce heat to medium low; stir in chicken pieces, and simmer, about 5 minutes, stirring occasionally.