Coconut Lemongrass Mushroom Soup : Vegan Tom Kha
Craving a soup that brings a tropical twist to your dinner table? This Coconut Lemongrass Mushroom Soup : Vegan Tom Kha is a delightful blend of coconut and lemongrass that will transport your taste buds to a serene beachside restaurant. With its creamy texture and aromatic flavors, it's a comforting bowl of Thai-inspired goodness.

Ingredients
- 1 can (13.5 oz) coconut milk
- 2 cups vegetable broth
- 1 stalk lemongrass, chopped
- 1-inch piece of galangal or ginger, sliced
- 200g mushrooms, sliced (shiitake or button mushrooms work well)
- 1 cup cherry tomatoes, halved
- 1-2 tablespoons soy sauce or tamari
- 1 tablespoon lime juice
- 1-2 teaspoons sugar or maple syrup
- Fresh cilantro for garnish
- Chili slices for garnish (optional)
Instructions
- Prepare the Broth: In a large pot, combine coconut milk, vegetable broth, chopped lemongrass, and sliced galangal. Bring to a gentle simmer over medium heat.
- Add the Mushrooms: Once the broth is simmering, add the sliced mushrooms and cherry tomatoes. Cook for about 5-7 minutes, or until the mushrooms are tender.
- Season the Soup: Stir in soy sauce, lime juice, and sugar. Taste and adjust seasoning as needed.
- Serve: Ladle the soup into bowls and garnish with fresh cilantro and chili slices, if desired. Enjoy hot with rice or on its own.
Cook’s tips
- Use fresh lemongrass for the best flavor; if using dried, use half the amount.
- Slice galangal thinly to infuse the broth; remove before serving.
- Add mushrooms and tomatoes at the end to keep them tender and vibrant.
- Taste and adjust the balance of salty, sour, and sweet before serving.
- For a richer soup, use full-fat coconut milk.
Substitutions
- Use regular ginger instead of galangal.
- Use tamari instead of soy sauce for a gluten-free option.
- Use maple syrup or agave instead of sugar.
- Substitute with cremini or oyster mushrooms.
- Add cubed tofu for extra protein.
Storage & reheating
Store in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop, adding a splash of water or broth if it thickens.
Frequently asked questions
Can I make this soup ahead of time?
Yes, but add the lime juice and fresh garnish just before serving to keep the flavors bright.
Is this soup gluten-free?
Yes, if you use tamari instead of soy sauce.
Can I freeze this soup?
It's best enjoyed fresh, but you can freeze it without the lime juice and garnish. Thaw overnight and reheat, then stir in lime juice.
What other vegetables can I add?
Bell peppers, carrots, or spinach are great additions; add them with the mushrooms for even cooking.



