Sauté the onion, garlic, bell pepper, and ginger until they soften and smell warm.
Stir in the curry paste and let it cook for a minute to deepen the flavor.
Add the chicken broth and stir until the curry paste dissolves.
The shredded chicken goes in next to warm through.
Lower the heat and stir in the coconut milk so the soup turns creamy.
Add fish sauce, salt, pepper, and lime juice for balance and let the soup sit on low heat for a minute so everything blends smoothly.
I ladle the soup into bowls and top it with cilantro or a squeeze of fresh lime.