Thai Coconut Curry Fish Soup is like a warm hug in a bowl with bright, fresh flavors. It combines tender pieces of fish with creamy coconut milk and a gentle kick from red curry paste. You’ll notice hints of lime and fresh herbs that bring everything together into a lively, comforting dish.
I love making this soup when I want something light but still really satisfying. The way the coconut milk softens the spice feels soothing, and the fish stays nice and delicate. It’s one of my go-to recipes when I want a cozy meal without feeling heavy.
My favorite way to enjoy this soup is with a side of jasmine rice to soak up all that delicious broth. Sometimes I add a few crunchy veggies like snap peas or bell peppers to mix in a fresh crunch. It’s a dish that always makes me feel happy and a little bit adventurous at the same time.
Key Ingredients & Substitutions
Red Curry Paste: This paste brings the main flavor and heat. If you want less spice, use less paste or swap with a milder green curry paste. Store-bought works well, but fresh homemade paste is even better if you have time.
Coconut Milk: Full-fat coconut milk makes the soup creamy and smooth. Light coconut milk is a good lower-fat option but expect a thinner soup.
Firm White Fish: I like cod or tilapia for their flaky texture. You can also use halibut or mahi-mahi. Avoid very delicate fish, as they can fall apart during cooking.
Fish Sauce: It adds umami and saltiness. For a vegetarian version, try soy sauce or tamari, but reduce salt accordingly.
Lime Juice & Fresh Herbs: Lime juice brightens the soup and cilantro adds freshness. If you’re not a fan of cilantro, try fresh basil or mint.
How Do You Cook Fish Perfectly in Coconut Curry Soup?
Cooking the fish gently is key to keeping it tender and moist without falling apart.
- Add fish pieces only after the broth and veggies are simmering gently.
- Keep the heat low to medium-low to avoid boiling, which can toughen the fish.
- Simmer the fish for about 5 minutes or until just cooked through—fish cooks quickly!
- Use a gentle spoon to stir, so the fish stays in good pieces.
Following these steps makes sure your fish is soft, flaky, and perfectly flavored by the curry broth.
Equipment You’ll Need
- Large pot – I use it so I can cook everything together easily and the soup stays hot throughout.
- Wooden spoon or ladle – perfect for stirring the curry and getting flavors mixed well without scratching the surface.
- Measuring spoons and cups – helps you add just the right amount of ingredients for perfect flavor balance.
- Knife and chopping board – for prepping vegetables and fish; a sharp knife makes quick work of slicing.
- Gloves or fish spatula (optional) – useful if handling raw fish to keep things tidy and avoid tearing the fillets.
Flavor Variations & Add-Ins
- Swap fish for shrimp or chicken – shrimp cooks fast and keeps the dish light, while chicken adds heartiness. Add these near the end and simmer briefly.
- Use different peppers – try yellow or orange peppers for a sweeter note that brightens the soup.
- Kick up the spice – add a pinch of chili flakes or fresh sliced chili if you like it hot.
- Add vegetables – snap peas, zucchini, or mushrooms make the soup more filling and add extra textures.
How to Make Thai Coconut Curry Fish Soup
Ingredients You’ll Need:
- 1 tbsp vegetable oil
- 2 tbsp red curry paste
- 1 can (14 oz) coconut milk
- 2 cups fish stock or chicken broth
- 1 lb firm white fish fillets (such as cod or tilapia), cut into bite-sized pieces
- 1 red bell pepper, sliced into strips
- 1 green bell pepper, sliced into strips
- 1 small onion, chopped
- 2 cloves garlic, minced
- 1-inch piece fresh ginger, grated
- 1 tbsp fish sauce
- 1 tbsp lime juice
- 1 tsp sugar
- 1/4 cup fresh cilantro, chopped (plus extra for garnish)
- 3 green onions, chopped
- Cooked jasmine rice, for serving
- Lime wedges, for garnish
How Much Time Will You Need?
This Thai Coconut Curry Fish Soup is quick and easy! It takes about 10 minutes to prepare and 15 minutes to cook, so you can have a warm, tasty meal ready in about 25 minutes total. Perfect for a weeknight dinner!
Step-by-Step Instructions:
1. Make the Curry Base:
Heat 1 tablespoon vegetable oil in a large pot over medium heat. Add 2 tablespoons red curry paste and sauté it for 1-2 minutes until you can smell the spices.
2. Cook Aromatics:
Add the chopped onion, minced garlic, and grated ginger to the pot. Cook for 3-4 minutes, stirring occasionally, until the onion becomes soft and fragrant.
3. Add Liquids and Simmer:
Pour in 1 can of coconut milk and 2 cups of fish stock or chicken broth. Stir everything well and bring it to a gentle simmer over medium-low heat.
4. Flavor the Soup:
Season the broth with 1 tablespoon fish sauce, 1 tablespoon lime juice, and 1 teaspoon sugar. Taste and adjust to your liking for the perfect balance of salty, sour, and sweet.
5. Cook the Vegetables:
Add the sliced red and green bell peppers. Let them cook for about 3-4 minutes until they start to soften but still have a little crunch.
6. Add the Fish:
Gently place the bite-sized fish pieces into the pot. Let the soup simmer for about 5 minutes, or until the fish is opaque and flakes easily with a fork.
7. Finish with Fresh Herbs:
Stir in the chopped cilantro and green onions. This adds a fresh burst of flavor that brightens up the soup.
8. Serve and Enjoy:
Ladle the soup into bowls and serve over or alongside warm jasmine rice. Garnish with extra cilantro and lime wedges for a lovely touch of color and zing.
Can I Use Frozen Fish for This Soup?
Yes, you can! Just make sure to thaw the fish completely in the fridge overnight before cooking. Pat it dry with paper towels to remove excess moisture, which helps keep the soup from becoming watery.
Can I Make This Soup Ahead of Time?
Absolutely! Prepare the soup up to step 6, then cool and refrigerate for up to 2 days. When ready, gently reheat on the stove and add fresh herbs right before serving to keep their vibrant flavor.
What Can I Substitute for Red Curry Paste?
If you don’t have red curry paste, you can use green curry paste for a slightly different flavor or even a mild Thai yellow curry paste. Adjust the quantity to taste to control the spice level.
How Should I Store Leftover Soup?
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat gently on the stove to avoid overcooking the fish. Adding a squeeze of fresh lime juice before serving refreshes the flavors.