Thai Red Curry Chicken

Name: Thai Red Curry Chicken
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: Thai
Ingredients: 1 tablespoon vegetable oil; 1 small bunch scallions, thinly sliced, light and dark green parts divided; 3 cloves garlic, chopped; 1 jalapeño pepper, seeded and diced (see note); 1 (14-oz) can coconut milk (unsweetened); 2 tablespoons Thai red curry paste; 2 tablespoons fish sauce; 2-1/2 tablespoons packed dark brown sugar; 1-1/2 pounds chicken tenderloins, cut into 1-inch cubes; 1 tablespoon lime juice, from 1 lime; 1/4 cup chopped fresh cilantro