Vietnamese Chicken Curry with fish

2 tablespoons light olive oil 1200 g skinless chicken pieces 1 1/2 tablespoons mild curry powder 3 garlic cloves 1 stalk lemongrass 2 cups sweet potatoes 2[...]

3 tablespoons curry powder 1/2 teaspoon salt 1 lb boneless skinless chicken thighs 2 tablespoons vegetable oil 1 tablespoon shallot , chopped 2 teaspoons[...]