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Bowl of fragrant chili lime lemongrass soup with fresh cilantro, sliced mushrooms, and red Thai chiles in a white bowl
Soups & Salads

Chili Lime Lemongrass Soup

Fragrant Thai-inspired soup made with lemongrass, lime, and fresh chiles. Ready in under 30 minutes.

5.0 (2)
Prep
15 min
Cook
25 min
Total
40 min
Serves
4
Style
🍽 Elevated

A very lovely, flavourful Asian-themed soup with bright citrus and warming chiles. Simple to make and absolutely delicious!

Ingredients

Servings:
4
  • 1 TBSP (15 ml) oil
  • 8 oz (227 g) mushrooms, sliced
  • 2 shallots, minced
  • 2 garlic cloves, sliced
  • 1–3 red Thai chiles, minced (or 2 long green chiles)
  • 6 cups (1.4 L) chicken stock (or vegetable)
  • 2 5-inch pieces lemongrass, halved lengthwise
  • 1/4 tsp sugar
  • 1 tsp fish sauce
  • 1 bunch cilantro, leaves and stems separated
  • 6 oz (170 g) rice noodles
  • 2–3 limes, juice of
  • 1 lb (454 g) firm tofu, diced
  • 2 scallions, thinly sliced

Instructions

  1. 1

    Heat the oil in a soup pot over medium-high heat. Add the mushrooms and cook, tossing from time to time, until golden, about 7 minutes. Add the shallots and cook for a minute or two. Add the garlic cloves and red chiles and cook for about a minute. Add 6 cups (1.4 litres) chicken stock, sugar, fish sauce, and lemongrass. Tie the cilantro stems together so it's easy to remove them afterwards and add them to the soup. Bring to a simmer and simmer for 5–10 minutes for the flavours to develop.

  2. 2

    Cover the rice noodles with cold water and set aside.

  3. 3

    Drain the noodles and add them to the soup. Cook for just a few minutes until they are just tender. Add the tofu and lime juice. Taste and adjust the seasoning with more salt and pepper as needed. Garnish with cilantro and scallions.

FAQ

Can I make chili lime lemongrass soup ahead of time?+
Yes, you can prepare the soup base up to 2 days ahead and store it in the refrigerator—just leave out the lime juice and cilantro leaves until serving. Cook the noodles fresh or keep them separate, then reheat the broth gently and assemble when ready to eat.
What can I use if I don't have lemongrass?+
You can substitute with lemon zest (about 1–2 tablespoons) or a combination of lime zest and a splash of white wine vinegar to capture that bright, citrusy flavor, though the depth won't be quite the same.
How spicy is this soup and can I adjust the heat?+
Starting with 1 red Thai chile makes it mildly spicy; use up to 3 if you like serious heat, or swap them for milder long green chiles for a gentler kick. You can always add more chiles at the end if you want it hotter.
Can I use vegetable stock instead of chicken?+
Absolutely—vegetable stock works great and keeps the soup fully vegetarian; just skip the fish sauce or replace it with soy sauce or a dash of salty umami ingredient like miso to maintain that savory depth.

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Chili Lime Lemongrass Soup — Easy 25-Min | Food 400°