Chicken Congee (Jook)

Name: Chicken Congee (Jook)
Prep time: 15 min
Cook time: 1 h 40 min
Total time: 1 h 55 min
Cuisine: Asian, Chinese
Ingredients: 1 1/2 pounds boneless, skinless chicken breasts, very thinly sliced; 2 tablespoons finely minced ginger; 3 green onions, whites chopped and greens thinly sliced lengthwise, divided; 2 teaspoons chicken bouillon; 1 teaspoon ground white pepper; 1 cup jasmine rice; 10 cups low-sodium chicken stock; Salt, to taste; 1 (2-inch) piece ginger, peeled and sliced into thin matchsticks, to garnish