I’m not usually one for eating soup in the summertime, but the brightness and comfortingly fresh flavors of this Thai soup are especially wonderful during the hot summer months with fresh summer tomato in the broth. It’s a creamy soup with a coconut milk base and the deep flavors of galangal, kaffir lime leaf, lemongrass, mushrooms, tomato, and chicken. You can find fresh kaffir lime leaves and galangal at many Asian markets; or look for dried leaves online—they pack the same amount of flavor. • serves 6
In a large pot, bring the coconut milk, stock, and water to a boil over medium-high heat. Add the onion, galangal, and lemongrass and reduce the heat to medium low. Simmer until the soup becomes very fragrant and the onion has softened slightly, about 5 minutes.
Stir in the chicken, mushrooms, and tomato and simmer until the chicken is cooked through, about 5 minutes. Add the fish sauce, soy sauce, sugar, and coriander and stir until combined. Remove from the heat and stir in the lime juice, kaffir lime leaves, and green onions. Allow the soup to rest for 5 minutes. Add salt to taste as needed and serve immediately.