What Is a Substitute for Fish Sauce?
QUICK ANSWER
The best fish sauce substitutes: soy sauce plus a pinch of sugar (1-to-1, the most accessible swap), Worcestershire sauce (1-to-1, contains anchovies), or anchovy paste mixed with water. For vegan substitutes, soy sauce plus lime juice plus a small pinch of miso paste provides similar umami.
Fish sauce is a fermented condiment used in Thai, Vietnamese, Filipino, and other Southeast Asian cuisines. It provides deep umami and salty depth that's hard to replicate exactly. Most substitutes provide some of the umami but lack fish sauce's specific funky character.
What's the best fish sauce substitute?
Soy sauce plus a pinch of sugar is the most accessible 1-to-1 substitute. Mix 1 tablespoon of soy sauce with 1/4 teaspoon of sugar to replace 1 tablespoon of fish sauce. The result lacks fish sauce's specific funky depth but provides similar salty-umami base.
For a closer match: Worcestershire sauce substitutes 1-to-1 and contains anchovies, providing some of the fish flavor that pure soy sauce lacks. Use 1 tablespoon of Worcestershire for 1 tablespoon of fish sauce. The flavor isn't identical (Worcestershire has additional spices), but it's closer to fish sauce than plain soy sauce.
Can you use anchovy paste as a substitute?
Yes. Anchovy paste is one of the closest substitutes because fish sauce is traditionally made from fermented fish. Mix 1 teaspoon of anchovy paste with 1 tablespoon of water and a pinch of salt to replace 1 tablespoon of fish sauce.
The flavor is more fish-forward than fish sauce (since anchovies are the primary ingredient in both), which works in Thai and Vietnamese cooking. For applications where you want subtle umami without obvious fish flavor, the soy sauce or Worcestershire substitutes are better choices.
What's the best vegan fish sauce substitute?
For vegan substitutes: combine 1 tablespoon of soy sauce with 1/2 teaspoon of lime juice and 1/8 teaspoon of miso paste. The lime adds the brightness that fish sauce brings; the miso provides additional fermented umami. Stir until the miso dissolves.
Commercial vegan fish sauces (made from seaweed or fermented mushrooms) work as 1-to-1 substitutes for real fish sauce. Brands like Ocean's Halo and 24 Vegan make versions specifically for Southeast Asian cooking. For papaya salad, pho, and other dishes that depend on fish sauce, the vegan versions get close to the original but don't fully match.
When does the fish sauce substitute fail?
For dishes where fish sauce is the defining flavor (Thai green papaya salad, Vietnamese nuoc cham, Pad Thai), substitutes work but produce noticeably different results. Anchovy paste gets closest; soy sauce alone is too one-dimensional.
For Vietnamese pho broth, the fish sauce contributes one layer among many (along with star anise, cinnamon, ginger). Substitutes work in pho because the broth's complexity carries the dish. For dipping sauces (nuoc cham), the fish sauce is the main flavor and substitutes change the dish significantly. For Asian recipes where fish sauce is mentioned but you don't see it called out as essential, soy sauce plus sugar is usually the right substitute.
Fish sauce substitutes: soy sauce plus sugar (1-to-1, most accessible), Worcestershire (1-to-1, contains anchovies), or anchovy paste plus water and salt. For vegan needs, soy sauce + lime + miso paste mix or commercial vegan fish sauce. For dipping sauces specifically, fish sauce is hard to fully replace.
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