Preheat oven to 425 degrees. Line a rimmed baking sheet with foil.
Remove and discard giblets from Cornish game hens. Using kitchen scissors, cut hens in half, cutting through center of breast and along backbone. Place hens halves, cut side down, on prepared baking sheet. Rub with soy sauce, and lightly sprinkle with salt and pepper.
In a small bowl, combine all glaze ingredients, whisk well. Generously brush each hen half with glaze. Bake for 35-40 minutes or until juices run clear, and internal temperature reaches 160 degrees, brushing frequently with glaze.
In a small saucepan bring remaining glaze to a boil over medium heat. Boil for 1 minute or until hot and slightly thickened. Spoon over hen halves just before serving.