⭐ Soy Sauce (Best Fat-Free Option)
1 teaspoon per 1 tablespoon Fish SauceSoy sauce contains glutamates that provide umami, similar to fish sauce, enhancing the chocolate's richness without adding fishy notes. Its liquid form blends well into brownie batter without affecting consistency.
Use a reduced amount (about 1/3 the volume of fish sauce) to avoid overpowering saltiness. Taste the batter before baking to ensure balance.
Compared to fish sauce, soy sauce offers a milder, less complex umami flavor, but it preserves the intended savory depth that complements the sweetness of brownies effectively.