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coconut lime fish soup

This vibrant coconut lime fish soup is one of those recipes that instantly transports me. The moment the aromas of ginger, garlic, and lemongrass start to fill my kitchen, I’m reminded of why I fell in love with cooking in the first place. It’s a dish that feels both incredibly special and refreshingly simple, a perfect bowl of comfort that’s bright, creamy, and packed with flavor.

coconut lime fish soup
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I remember my mom making big pots of soup on chilly evenings, and while her recipes were more traditional, the feeling was the same: a sense of warmth and care simmering on the stove. This recipe channels that feeling but with a Thai-inspired twist that’s become a new family favorite. It’s my go-to when I want something that feels a little bit like an adventure.

The best part is how quickly it comes together. It’s a hearty, satisfying meal that’s ready in about 30 minutes, which is a lifesaver on busy weeknights. My little secret is to prep all the aromatics ahead of time, so when you’re ready to cook, it’s just a matter of adding everything to the pot.

What You Need to Make This Recipe

The magic of this coconut lime fish soup comes from a beautiful blend of aromatics like red curry paste, fresh ginger, and lemongrass paired with creamy coconut milk. You’ll find the full list of ingredients and measurements in the recipe card below!

coconut lime fish soup recipe
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How to Make coconut lime fish soup

Making this soup is a joyfully simple process. You’ll start by sautéing the onions, peppers, and all those fragrant aromatics until your kitchen smells amazing. Then, you’ll build the broth by simmering the curry paste, coconut milk, and broth together. Finally, you’ll gently cook the fish in the broth right at the end and wilt in some spinach before serving.

Close-up of a delicious coconut lime fish soup in a white bowl, garnished with white fish, red chilies, cilantro, and a lime wedge.

Vibrant Coconut Lime Fish Soup

A vibrant and aromatic soup that balances creamy coconut milk with tangy lime and tender flakes of white fish. This easy, one-pot Thai-inspired meal is ready in under 40 minutes.
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 4 servings
Course: Main Course, Soup
Cuisine: Southeast Asian, Thai
Calories: 485

Ingredients
  

For the Soup Base
  • 1 tbsp coconut oil or vegetable oil
  • 1 medium yellow onion finely chopped
  • 1 red bell pepper thinly sliced
  • 4 cloves garlic minced
  • 1 inch fresh ginger peeled and grated
  • 1 stalk lemongrass tough outer layers removed, bruised and roughly chopped
  • 2 tbsp red curry paste use 1 tbsp for mild, or more for extra spice
  • 4 cups vegetable or chicken broth low-sodium
  • 1 can (13.5 oz) full-fat coconut milk shaken well
  • 2 tbsp fish sauce
  • 1 tsp coconut sugar or brown sugar
For the Fish and Finish
  • 1.5 lbs firm white fish fillets such as cod, halibut, or tilapia, cut into 1.5-inch cubes
  • 3 cups fresh spinach packed
  • 2 limes zest of one, juice of both
Optional Garnishes
  • 1/4 cup fresh cilantro chopped
  • 1/4 cup fresh Thai basil leaves
  • 1 red chili thinly sliced
  • 1 lime cut into wedges for serving

Equipment

  • Large Pot or Dutch Oven
  • Cutting board
  • Chef's knife

Method
 

Sauté the Aromatics
    Build the Broth
      Cook the Fish and Finish
        Serve

          Notes

          • Fish Choice: Any firm white fish works well. Cod, halibut, mahi-mahi, or even shrimp are great options. Avoid delicate fish that will fall apart easily.
          • Spice Level: The heat comes from the red curry paste. Start with 1 tablespoon for a mild soup and add more to suit your preference.
          • Storage: Store leftovers in an airtight container in the refrigerator for up to 2 days. The fish texture is best when fresh, but it reheats well gently on the stovetop. Avoid boiling when reheating.
          • Serving Suggestion: This soup is a complete meal on its own but can also be served with a side of steamed jasmine or basmati rice.

          Pro Tips for Making This coconut lime fish soup

          Over the years, I’ve learned a few things that really take this soup to the next level. The key to a perfect coconut lime fish soup is balancing the creamy, sour, sweet, and savory flavors.

          • Don’t Overcook the Fish: The fish cooks very quickly in the hot broth, usually in just 3-4 minutes. Add it in the last few minutes of cooking so it stays tender and flaky.
          • Use Full-Fat Coconut Milk: For the creamiest, richest broth, don’t skimp on the coconut milk! Full-fat gives this fish soup its signature luxurious texture.
          • Adjust to Your Taste: Before serving, give the broth a taste. It might need an extra squeeze of lime for brightness, a dash of fish sauce for saltiness, or a little more coconut sugar for sweetness.
          • My Secret Trick: I always “bloom” the red curry paste. This means I sauté it in the coconut oil with the aromatics for about a minute before adding any liquid. This simple step awakens the spices and creates a much deeper, more complex flavor throughout the entire coconut lime fish soup.
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          Fun Variations for coconut lime fish soup

          One of the things I love most about cooking is making a recipe my own, and making this coconut lime fish soup your own is easy! It’s incredibly versatile. Here are a few variations we love in my family:

          • Add Some Noodles: For a heartier meal, add a handful of cooked rice vermicelli noodles to each bowl before ladling in the soup. It turns this dish into a complete one-bowl wonder.
          • Swap the Protein: Not in the mood for fish? This soup is fantastic with shrimp, scallops, or even bite-sized pieces of chicken. If using chicken, just be sure to cook it through before adding the spinach.
          • Load Up on Veggies: Feel free to add more vegetables to the pot. Sliced mushrooms, bamboo shoots, or baby bok choy are all wonderful additions. Add them along with the bell pepper.
          • Make it a Curry Dumpling Soup: For a fun twist, you could draw inspiration from my Thai Curry Dumpling Soup and add some delicate dumplings instead of fish for a different kind of comforting meal. This coconut lime fish soup base is perfect for it.

          What to Serve With coconut lime fish soup

          While this soup is a star all on its own, a few simple sides can make the meal feel even more special. These sides complement the coconut lime fish soup beautifully without taking a lot of extra effort.

          • Steamed Jasmine Rice: A small bowl of fluffy jasmine rice is perfect for soaking up every last drop of that delicious, creamy broth.
          • Crusty Bread: A warm, crusty baguette is another great option for dipping. My kids love this!
          • Simple Cucumber Salad: A quick salad of sliced cucumber, red onion, and rice vinegar provides a cool, crisp contrast to the warm, rich soup.

          How to Store coconut lime fish soup

          Properly storing this soup ensures it tastes just as good the next day. Here’s my method:

          • To Store: Let the leftover soup cool to room temperature, then store it in an airtight container in the refrigerator for up to 2 days. I find that the flavors meld and deepen overnight, making it even more delicious!
          • To Reheat: Gently warm the coconut lime fish soup in a saucepan over medium-low heat until it’s heated through. Avoid boiling it, as this can make the fish tough and cause the coconut milk to separate.

          Nutritional Benefits

          This delicious coconut lime fish soup is packed with lean protein from the fish and healthy fats from the coconut milk. It’s a wholesome, satisfying meal the whole family can feel good about eating, offering a wonderful balance of flavor and nutrition.

          FAQs

          What type of fish is best for this soup?

          For this fish soup, you’ll want a firm white fish that holds its shape well. I love using cod, halibut, or tilapia because they become wonderfully tender and flaky without falling apart in the broth.

          Can I make this soup spicy?

          Absolutely! The red curry paste adds a mild warmth, but if you like more heat, feel free to add an extra teaspoon of curry paste or toss in some thinly sliced red chili along with the fresh herbs for garnish.

          Is full-fat coconut milk necessary?

          I highly recommend full-fat coconut milk for the creamiest, most authentic texture. Light coconut milk will work, but the broth won’t be as rich or flavorful. For the best coconut lime soup, full-fat is the way to go.

          Can I add other vegetables to this soup?

          Yes, this is a great recipe for cleaning out the veggie drawer! When making coconut lime fish soup, feel free to add sliced mushrooms, snap peas, or baby corn. Add them with the bell peppers so they have enough time to cook.

          Conclusion

          This coconut lime fish soup recipe has become a true staple in my home. It’s a dish that proves that you don’t need hours in the kitchen to create something deeply comforting and bursting with flavor. It’s the kind of meal that brings everyone to the table and leaves them feeling happy and satisfied. If you’re looking for other cozy soup ideas, my Lemon Chicken Rice Soup is another family favorite. I hope this recipe for coconut lime fish soup brings as much joy to your kitchen as it does to mine!

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