Tom Kha Soup Gai: Brothy Thai-Style Shrimp and Mushroom Soup
Ingredients
- Protein
- 1 lb shrimp, peeled and deveined
- Aromatics and Base Flavors
- 1-2 tbsp vegetable oil
- 1 sweet onion, cut into half strips
- 3-4 celery stalk, finely cut
- 1-2 carrot, cut into fine discs
- 3 garlic cloves, minced
- 1 tbsp fresh grated ginger
- 1 tbsp lemongrass paste
- 2 tbsp red curry paste
- Liquids
- 1 can (15 oz) full-fat coconut milk (more if needed)
- 3-4 cups rich gelatinous chicken stock (made from boiling down one chicken carcass with veggies over 3-4 hours)
- Other Vegetables
- 1 cup shiitake mushrooms rehydrated and sliced
- 1 red bell pepper, cut into strips
- Seasonings
- 2 tbsp fish sauce
- 2 tbsp brown sugar
- 2 tbsp fresh lime juice (about 2 large limes)
- 2-3 tbsp Thai chili paste
- Salt and pepper to taste
Instructions
1. Pre-cook the Shrimp
- Simmer the Shrimp: Bring 1 cup of chicken stock to a gentle simmer in a small pot. Add the shrimp and cook for about 2 minutes until they turn pink and opaque. Remove the shrimp and set aside. Reserve the cooking stock for later use in the soup.
2. Prepare the Aromatics and Vegetables
- Heat Oil: In a large Dutch oven or pot, heat 1 tablespoon of vegetable oil over medium heat.
- Sauté Aromatics: Add the chopped onion, celery, carrot, and minced garlic to the pot. Sauté for 2-3 minutes until the onion becomes soft and translucent.
- Add Ginger and Lemongrass: Stir in the grated ginger and lemongrass, cooking for another 1-2 minutes until fragrant.
- Incorporate Curry Paste: Add 2 tbsp of red curry paste and mix well, letting it cook for about a minute to release its flavors.
3. Create the Soup Base
- Add Chicken Stock: Pour in the 3-4 cups of chicken stock (including the reserved stock from cooking the shrimp) and bring to a boil. Add liquid from reconstitute shitake if needed.
- Simmer: Reduce heat to low and let simmer uncovered for 10 minutes to allow the flavors to meld.
4. Add Vegetables and Coconut Milk
- Add Other Vegetables: Add the sliced shiitake mushrooms and red bell pepper to the pot. Continue cooking until the mushrooms are tender, about 5 minutes.
- Coconut Milk and Seasonings: Stir in the coconut milk, fish sauce, and brown sugar. Bring the mixture to a gentle simmer and cook for another 5 minutes.
5. Final Touches
- Add Shrimp: Return the cooked shrimp to the soup, allowing them to warm through for 1-2 minutes.
- Finish with Lime: Remove the pot from heat and stir in the fresh lime juice.
- Add Cilantro: Mix in half of the chopped cilantro, reserving the rest for garnish.
6. Serve and Garnish
- Garnish: Ladle the soup into bowls and top with remaining cilantro, sliced chili (if using), chopped green onions, and a squeeze of fresh lime juice.
- Optional Heat: Drizzle with sriracha sauce or chili oil if desired.
- Serve with Rice: Serve alone as a soup or over jasmine rice for a more filling meal.
Tips
- Adjust Spice Level: You can control the spiciness by adjusting the amount of red curry paste and optional chili slices.
- Aromatics Variation: If you’re out of lemongrass, lemongrass paste or lime zest can be a substitute, though the flavor will vary slightly.
- Additions: Feel free to add other vegetables like sliced zucchini or baby corn to enhance the dish.