6 cups water
4 cups low-sodium chicken broth
1 1/2 pounds bone-in chicken legs or thighs, skin removed and trimmed of excess fat
1 cup long-grain white rice
1 (1-inch) piece fresh ginger, skin on and sliced into 4 pieces
2 teaspoons kosher salt, plus more as needed
Pinch freshly ground white pepper, plus more as needed
Coarsely chopped fresh cilantro, for garnish
Thinly sliced scallions, for garnish