In a Dutch oven, bring coconut milk to a boil. Cook, uncovered, 10-12 minutes or until liquid is reduced to 3 cups. Stir in curry paste until completely dissolved., Meanwhile, prepare noodles according to package directions., Add broth, brown sugar, fish sauce and garlic salt to curry mixture; return to a boil. Reduce heat; simmer, uncovered, 10 minutes, stirring occasionally. Stir in chicken; heat through., Drain noodles; divide among 6 large soup bowls. Ladle soup over noodles; top servings with vegetables, basil and cilantro.