Preheat oven to 400 F. Nest a cooling rack inside a half sheet pan, and spray both with nonstick cooking oil. Set aside.
Combine 1/4 cup orange juice, 3 tablespoons soy sauce, 3 tablespoons brown sugar, olive oil, garlic, orange zest, salt and chipotle chile pepper in a large zip-top plastic freezer bag; add chicken. Toss gently and chill for 15-30 minutes. Discard marinade.
Place chicken on rack in pan, and bake 50 minutes, turning chicken halfway through.
In a small saucepan, mix 2 teaspoons brown sugar, remaining orange juice and 2 tablespoons soy sauce. In a small bowl, whisk together cornstarch and 2 teaspoons water, then add to orange juice mixture on stovetop. Stir until well blended. Over medium heat, bring this sauce to a boil and cook, stirring constantly for 1 minute.
Brush sauce over chicken, serving extra on the side.
Recipe adapted from MyRecipes.com