Spicy Thai Lemongrass Noodle Soup is a vibrant, aromatic, and comforting dish that highlights the fresh flavors of Southeast Asia. This soup combines tender rice noodles, fragrant lemongrass, aromatic herbs, and a spicy, flavorful broth that warms the soul. It is both light and satisfying, with a perfect balance of heat, tang, and umami. The combination of fresh ingredients like lime, cilantro, and chili with the depth of coconut milk or broth creates a dish that is bursting with flavor and complexity. Perfect for a quick weeknight dinner or a cozy weekend meal, this soup transports your taste buds straight to Thailand.
Why I Love This Recipe
I love this recipe because it delivers bold flavors without being overly complicated. The lemongrass and ginger infuse the broth with a fragrant warmth, while the noodles and vegetables make it hearty enough for a full meal. The balance of spice, acidity, and aromatics is exquisite, and the soup feels fresh yet indulgent. It is also versatile, easy to make, and perfect for customizing based on your heat tolerance or ingredient availability.
Why This Is a Must-Try Dish
This is a must-try dish because it captures the essence of Thai cuisine in a home-friendly recipe. It combines fresh herbs, spices, and noodles in a way that is both comforting and exciting. The soup is ideal for anyone who loves bold, vibrant flavors and wants to explore authentic Thai-style cooking without leaving their kitchen. Its satisfying texture and aromatic broth make it a crowd-pleaser for family or dinner guests.
Recipe Overview
Preparation Time: 20 minutes
Cooking Time: 25 minutes
Total Time: 45 minutes
Servings: 4
Calories: Approximately 350 calories per serving
Course: Main Course or Soup
Cuisine: Thai
Ingredients
- 6 cups chicken or vegetable broth
- 2 stalks fresh lemongrass, trimmed and smashed
- 1-inch piece fresh ginger, sliced
- 2 cloves garlic, minced
- 1–2 red chilies, sliced
- 1 tablespoon red curry paste
- 1 tablespoon fish sauce
- 1 tablespoon soy sauce
- 1 tablespoon lime juice
- 1 can (14 oz) coconut milk
- 8 oz rice noodles
- 1 cup shredded cooked chicken or tofu for vegetarian option
- 1 cup mushrooms, sliced
- 1 red bell pepper, thinly sliced
- 1 cup baby spinach or bok choy
- Fresh cilantro and green onions for garnish
- Optional: lime wedges and chili flakes for extra heat
Cooking Directions
In a large pot, combine broth, lemongrass, ginger, garlic, and red chilies. Bring to a simmer and let it infuse for 10 minutes.
Remove lemongrass and ginger pieces.
Add red curry paste, fish sauce, soy sauce, and coconut milk. Stir to combine.
Add mushrooms, bell pepper, and chicken or tofu, simmer until cooked through.
Cook rice noodles separately according to package instructions, then drain and divide into serving bowls.
Pour hot soup over noodles, add spinach or bok choy, and stir until wilted.
Garnish with cilantro, green onions, lime wedges, and optional chili flakes.
Step-by-Step Preparation Method
Step 1: Prepare lemongrass by trimming and lightly smashing stalks.
Step 2: Slice ginger, garlic, and chilies.
Step 3: In a large pot, simmer broth with lemongrass, ginger, garlic, and chilies for 10 minutes.
Step 4: Remove aromatics and stir in red curry paste, fish sauce, soy sauce, and coconut milk.
Step 5: Add vegetables and chicken or tofu, cooking until tender and heated through.
Step 6: Cook rice noodles according to package instructions and divide into bowls.
Step 7: Pour soup over noodles, add leafy greens, and stir briefly.
Step 8: Garnish with fresh herbs, lime wedges, and additional chili if desired.
Step 9: Serve immediately while hot.

How to Serve This Recipe
Serve Spicy Thai Lemongrass Noodle Soup hot in deep bowls. Garnish with fresh cilantro, green onions, and lime wedges. Pair with spring rolls, steamed dumplings, or a light salad for a complete Thai-inspired meal.
Recipe Tips
Use fresh lemongrass for authentic flavor; dried lemongrass can be a substitute if needed.
Adjust the number of chilies according to your spice tolerance.
Do not overcook rice noodles; add them just before serving to maintain texture.
Taste and adjust seasoning with fish sauce, lime juice, or soy sauce as needed.
Variations
Add shrimp or seafood instead of chicken for a coastal twist.
Use soba or udon noodles for different textures.
Add baby corn, snap peas, or zucchini for extra vegetables.
Make it vegetarian by using tofu and vegetable broth only.
Incorporate kaffir lime leaves or Thai basil for enhanced aromatics.
Freezing and Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days.
Do not freeze cooked noodles with the soup; store broth and vegetables separately and add fresh noodles when reheating.
Reheat gently on the stovetop until hot, adding additional broth if needed.
Special Equipment Needed
Large pot or Dutch oven
Cutting board and knife
Measuring spoons
Ladle for serving
Frequently Asked Questions
Can I make this soup less spicy?
Yes, reduce or omit red chilies and adjust red curry paste according to taste.
Can I prepare this soup in advance?
Yes, you can make the broth and vegetables ahead of time. Add noodles just before serving.
Can I use canned or frozen lemongrass?
Fresh lemongrass provides the best flavor, but frozen or dried lemongrass can be substituted.
Can I make this gluten-free?
Yes, use gluten-free soy sauce and ensure rice noodles are certified gluten-free.
Conclusion
Spicy Thai Lemongrass Noodle Soup is a vibrant, comforting, and aromatic dish that brings the flavors of Thailand into your kitchen. With tender noodles, flavorful broth, fresh vegetables, and optional protein, it is perfect for a satisfying weeknight meal or a special gathering. This soup combines bold flavors, freshness, and simplicity, making it a recipe you will return to time and time again.
Spicy Thai Lemongrass Noodle Soup
Course: SoupsCuisine: ThaiDifficulty: Easy4
servings20
minutes25
minutes45
minutesIngredients
6 cups chicken or vegetable broth
2 stalks fresh lemongrass, trimmed and smashed
1-inch piece fresh ginger, sliced
2 cloves garlic, minced
1–2 red chilies, sliced
1 tablespoon red curry paste
1 tablespoon fish sauce
1 tablespoon soy sauce
1 tablespoon lime juice
1 can (14 oz) coconut milk
8 oz rice noodles
1 cup shredded cooked chicken or tofu for vegetarian option
1 cup mushrooms, sliced
1 red bell pepper, thinly sliced
1 cup baby spinach or bok choy
Fresh cilantro and green onions for garnish
Optional: lime wedges and chili flakes for extra heat
Directions
- Step 1: Prepare lemongrass by trimming and lightly smashing stalks.
- Step 2: Slice ginger, garlic, and chilies.
- Step 3: In a large pot, simmer broth with lemongrass, ginger, garlic, and chilies for 10 minutes.
- Step 4: Remove aromatics and stir in red curry paste, fish sauce, soy sauce, and coconut milk.
- Step 5: Add vegetables and chicken or tofu, cooking until tender and heated through.
- Step 6: Cook rice noodles according to package instructions and divide into bowls.
- Step 7: Pour soup over noodles, add leafy greens, and stir briefly.
- Step 8: Garnish with fresh herbs, lime wedges, and additional chili if desired.
- Step 9: Serve immediately while hot.






