⭐ Soy Sauce with Lime Juice (Best Dairy-Free Option)
1 tablespoon soy sauce + 1 teaspoon fresh lime juice per 1 tablespoon fish sauceSoy sauce provides a salty, umami-rich base similar to fish sauce due to its fermentation process, while lime juice adds the bright acidity that fish sauce contributes to curry. This combination balances the savory and tangy notes essential in curry.
For best results, use light soy sauce to avoid overpowering saltiness and add lime juice just before serving to preserve freshness. Adjust lime juice quantity to taste to avoid excessive sourness.
The final curry will have a slightly different flavor profile—less fishy but still complex and balanced—making it a reliable and accessible substitute.