Chicken Arroz Caldo (Chicken Rice Porridge)

Name: Chicken Arroz Caldo (Chicken Rice Porridge)
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: Asian
Ingredients: 2 tablespoons olive oil; 1 onion, diced; 2 cloves garlic, crushed; 1 (2 inch) piece fresh ginger, peeled and thinly sliced; 2.25 pounds chicken wings, split and tips discarded; 1 tablespoon fish sauce; 5.25 cups chicken broth; 1 cup glutinous sweet rice; salt and pepper to taste; 1 green onion, chopped; 1 lemon, sliced; 1 teaspoon fish sauce for sprinkling, if desired