Bring 8 cups of water to a boil in a large pot and add a large bone-in chicken breast and 2 stalks of chopped and bruised lemongrass
Cover the pot and boil for 30 minutes
Transfer the pot off of the heat, remove the chicken breast and let it cool on a plate
Place a large pot over medium heat and add a tablespoon of olive oil and the diced onions. Cook for about 10 minutes or until the onions have softened
Add the minced garlic, grated ginger and 3 tablespoons of red curry paste and cook for about 60 seconds while stirring continuously
Strain the liquid from the first pot in with the curry and vegetables and stir until fully combined. Discard the lemongrass.
Shred the chicken and add it to the soup along with the sliced carrots, the juice from a large lime, coconut milk and the noodles
Bring the soup to a simmer and cook for 10 minutes
Add fresh cilantro, basil and a generous pinch of salt and black pepper
Serve hot with lime wedges