Plant-based fish sauce is the umami hack that unlocks Thai and Vietnamese cooking without the anchovies: soy sauce, lime, palm sugar, garlic, and optional dulse simmered into a salty-sour condiment that behaves beautifully in dips and dressings. Fifteen minutes, one small jar, endless stir-fries.
The Ultimate Plant-Based Fish Sauce
Craving that umami-packed, funky, and salty kick of Southeast Asian fish sauce but want to keep it plant-based? You’ve come to the right place! This recipe for vegetarian nam pla captures the essence of the classic condiment without a single fish. The secret? A touch of dulse seaweed brings a subtle, briny depth that’s simply magical. It’s the perfect way to elevate your Thai and Vietnamese-inspired dishes, from spring rolls to noodle salads.
Ingredients
• MAKES: About 1/2 cupTIME: 15 minutes
• 1 tablespoon (3g / 0.11 oz) crumbled or ground dulse, optional
• 1 clove garlic, minced
• 2 tablespoons (30ml / 1 fl oz) light soy sauce or tamari
• 4 limes
• 1 tablespoon (15g / 0.53 oz) palm sugar or brown sugar
• 2 tablespoons (30ml / 1 fl oz) water
Instructions
1. In a small bowl, whisk together the dulse (if using), minced garlic, soy sauce, and water.
2. Grate the zest from 2 of the limes directly into the bowl.
3. Juice all 4 limes and add the fresh juice to the mixture.
4. Add the palm sugar and stir vigorously until it is completely dissolved.
5. Let the sauce rest for at least 5 minutes before serving to allow all the flavors to meld together.
Nutritional Information
• (Estimated)
• Serving Size: 1 tablespoon (15 ml / 0.5 fl oz)
• Calories: 15
• Sodium: 250mg
• Carbohydrates: 4g
• Sugar: 3g
Pro Tips
• Create a Thai-Style Dipping Sauce (Nam Prik) by adding 1-10 minced fresh Thai chiles (or red pepper flakes to taste) and a tablespoon of finely shredded carrot.
• Make a Vietnamese-Style Dipping Sauce (Nuoc Cham) by adding 1-2 minced fresh chiles, a tablespoon of minced ginger, and the juice of one extra lime.
• Store your vegan fish sauce in an airtight container in the refrigerator for up to 2 weeks. The flavors will deepen and improve over time.
• The balance of salty, sweet, and sour is personal. Feel free to adjust the lime juice, sugar, or soy sauce to match your preference.
FAQ
Q: What can I use if I can’t find dulse seaweed
A: If you can’t find dulse, you can substitute it with a small amount of crumbled nori (sushi seaweed) or a pinch of mushroom powder to add a savory, umami depth. While the flavor will be slightly different, it will still create a delicious, briny sauce.
Q: Is this vegetarian fish sauce recipe gluten-free
A: Yes, this recipe can easily be made gluten-free. Simply ensure you use tamari, which is traditionally brewed without wheat, or a specifically labeled gluten-free soy sauce. The other ingredients are naturally gluten-free.
Q: How long does this plant-based fish sauce last
A: You can store your homemade vegetarian fish sauce in an airtight container in the refrigerator for up to two weeks. The flavors will continue to meld and may even improve after a day or two.
Q: Can I make this recipe without sugar
A: The sugar is key to balancing the salty and sour flavors, which is characteristic of fish sauce. For a sugar-free alternative, you could try a few drops of liquid monk fruit or stevia, but you will need to adjust to taste as the sweetness level varies.
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The Ultimate Plant-Based Fish Sauce
Ingredients
Method
- In a small bowl, whisk together the dulse (if using), minced garlic, soy sauce, and water.
- Grate the zest from 2 of the limes directly into the bowl.
- Juice all 4 limes and add the fresh juice to the mixture.
- Add the palm sugar and stir vigorously until it is completely dissolved.
- Let the sauce rest for at least 5 minutes before serving to allow all the flavors to meld together.
