Spicy Curry Noodle Soup with Chicken and Sweet Potato

Ingredients

• tablespoons vegetable oil
• tablespoons chopped shallots
• garlic cloves, chopped
• tablespoons minced lemongrass*
• tablespoons minced peeled fresh ginger
• tablespoons Thai yellow curry paste*
• tablespoons curry powder
• teaspoon hot chili paste *
• to 14-ounce cans unsweetened coconut milk,* divided
• low-salt chicken broth
• tablespoons fish sauce *
• teaspoons sugar
• snow peas, trimmed
• 1/2-inch cubes peeled red-skinned sweet potato
• pound dried rice vermicelli noodles or rice stick noodles*
• pound skinless boneless chicken thighs, thinly sliced
• thinly sliced red onion
• thinly sliced green onions
• chopped fresh cilantro
• red Thai bird chiles or 2 red jalapeño chiles, thinly sliced with seeds
• lime, cut into 6 wedges