Ginger Glazed Chicken Ramen

Name: Ginger Glazed Chicken Ramen
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American, Japanese
Ingredients: 8 cups chicken broth (reduced sodium); 1/4 cup light soy sauce; 1/4 cup mirin; 2 inch piece fresh ginger, peeled and roughly chopped; 3-5 cloves garlic, roughly chopped; 4 green onions, cut into 2 inch pieces; 1 stalk lemongrass, trimmed and cut into 2 inch pieces ((optional)); 1/2 - 1 tsp red pepper flakes; 4 boneless, skinless chicken thighs; 1/2 tsp black pepper; 2 Tbsp vegetable oil; 3 Tbsp light soy sauce; 1 Tbsp dark soy sauce; 3 Tbsp light brown sugar; 2 tsp minced ginger; 1 tsp minced garlic; 8 oz fresh shiitake mushrooms, halved or sliced; 5 oz baby spinach; 1 Tbsp sesame oil; 12 oz ramen noodles; 3 green onions, sliced