Peel and devein the shrimp, set them aside for later use. You can also cook this soup with head-on or shell-on shrimp for extra flavor.
In a wok or pot over medium heat, bring water to a boil. Once boiling, introduce the shallots, lemongrass, galangal, and kaffir lime leaves to the water.
20 g lemongrass, 30 g shallots, 3 kaffir lime leaves, 350 ml water, 20 g galangal
After simmering for approx 3 minutes, add the chili paste, palm sugar, fish sauce, salt, fresh lime juice, and mushrooms. Stir well until the mixture returns to a boil. At this point, taste the soup and adjust seasoning if needed.
2 tablespoons Thai chili paste, 3 tablespoons fish sauce, 1 teaspoon salt, 1 tablespoon palm sugar, 2 tablespoons lime juice, 100 g Asian mushrooms
Add the evaporated milk to the pot and allow the soup to simmer for a few additional minutes.
100 ml evaporated milk
Introduce the shrimp and cook them until they are nearly done. Don’t overcook them, they will continue to cook in the boiling soup.
10 shrimp
Finally, stir in the green onions, culantro, and coriander. Serve the soup immediately, garnishing each bowl with additional chilies, coriander, green onions, and culantro.
green onions, culantro, coriander