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Best Fish Sauce Substitute in Biscuits

5 tested options with exact ratios, science-backed explanations, and tips for success.

Quick Answer

The best substitute for Fish Sauce in Biscuits is Soy Sauce because it provides a similar umami depth and saltiness without overwhelming the delicate biscuit dough.

Top 5 Fish Sauce Substitutes for Biscuits

Substitute Ratio
Soy Sauce (Best) 1 teaspoon per 1 tablespoon of fish sauce
Tamari 1 teaspoon per 1 tablespoon of fish sauce
Miso Paste (diluted) 1 teaspoon miso paste diluted in 1 tablespoon water per 1 tablespoon fish sauce
Coconut Aminos 1 teaspoon per 1 tablespoon of fish sauce
Vegetable Broth (concentrated) 1 tablespoon concentrated vegetable broth per 1 tablespoon fish sauce

Detailed Guide: Each Fish Sauce Substitute in Biscuits

Soy Sauce (Best Option)

1 teaspoon per 1 tablespoon of fish sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Soy sauce adds umami and saltiness with a thinner consistency, which blends well into biscuit dough without affecting texture.

Soy sauce contains glutamates that mimic the umami flavor of fish sauce, providing depth without overpowering the biscuit’s mild flavor. Its liquid form integrates smoothly into dough, maintaining the biscuit’s structure.

When using soy sauce, reduce any additional salt slightly to avoid over-salting. Mix thoroughly to ensure even distribution and avoid localized dark spots.

The final biscuit will have a subtle savory note similar to fish sauce but with a slightly different aroma, maintaining the expected lightness and flakiness.

Tamari

1 teaspoon per 1 tablespoon of fish sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Tamari is a gluten-free soy sauce alternative that provides similar umami and saltiness, suitable for gluten-sensitive individuals.

Tamari offers a rich umami profile due to its fermentation process, closely replicating fish sauce’s savory qualities. Its thicker consistency can help maintain moisture balance in biscuit dough.

Use tamari in the same way as soy sauce, adjusting salt content accordingly. Ensure it is well incorporated to avoid uneven coloring.

Biscuits made with tamari will have a comparable savory depth with a slightly less sharp flavor, preserving the desired texture and crumb.

Miso Paste (diluted)

1 teaspoon miso paste diluted in 1 tablespoon water per 1 tablespoon fish sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Diluted miso paste adds umami and salt but can slightly increase dough density if overused.

Miso paste contains fermented soybeans that provide glutamates similar to fish sauce, enhancing savory flavor. Dilution is necessary to prevent the paste’s thickness from altering dough hydration.

Mix miso thoroughly with water before adding to dough to ensure even distribution. Avoid adding extra liquid elsewhere to maintain biscuit texture.

The resulting biscuit will have a mild fermented flavor and a tender crumb, though slightly denser than with fish sauce or soy sauce.

Coconut Aminos

1 teaspoon per 1 tablespoon of fish sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Coconut aminos provide a mild, slightly sweet umami flavor with less salt, which may require salt adjustment.

Coconut aminos are derived from fermented coconut sap and contain amino acids that replicate some umami characteristics of fish sauce. Their lower sodium content means biscuits may need added salt for balance.

Incorporate coconut aminos evenly and taste dough to adjust salt levels. Be cautious with sweetness to avoid altering biscuit flavor.

Biscuits will have a subtle umami note with a hint of sweetness, maintaining a light texture but with a slightly different flavor profile.

Vegetable Broth (concentrated)

1 tablespoon concentrated vegetable broth per 1 tablespoon fish sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Concentrated vegetable broth adds mild umami but lacks salt intensity, requiring salt adjustment and careful moisture control.

Concentrated vegetable broth contains amino acids and minerals that contribute subtle umami flavor, partially mimicking fish sauce’s savory profile. However, it is less salty and more watery.

Reduce other liquids in the recipe slightly to compensate for added moisture. Increase salt cautiously to maintain flavor balance.

The biscuit will be less intensely savory but retain moisture and tenderness, resulting in a milder flavor and slightly softer texture compared to fish sauce.

Vegan Fish Sauce Substitutes for Biscuits

Full Vegan guide →
Soy Sauce
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Soy sauce adds umami and saltiness with a thinner consistency, which blends well into biscuit dough without affecting texture.

Tamari
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Tamari is a gluten-free soy sauce alternative that provides similar umami and saltiness, suitable for gluten-sensitive individuals.

Miso Paste (diluted)
Ratio: 1 teaspoon miso paste diluted in 1 tablespoon water per 1 tablespoon fish sauce

Diluted miso paste adds umami and salt but can slightly increase dough density if overused.

Coconut Aminos
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Coconut aminos provide a mild, slightly sweet umami flavor with less salt, which may require salt adjustment.

Vegetable Broth (concentrated)
Ratio: 1 tablespoon concentrated vegetable broth per 1 tablespoon fish sauce

Concentrated vegetable broth adds mild umami but lacks salt intensity, requiring salt adjustment and careful moisture control.

Gluten-Free Fish Sauce Substitutes for Biscuits

Full Gluten-Free guide →
Soy Sauce
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Soy sauce adds umami and saltiness with a thinner consistency, which blends well into biscuit dough without affecting texture.

Tamari
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Tamari is a gluten-free soy sauce alternative that provides similar umami and saltiness, suitable for gluten-sensitive individuals.

Miso Paste (diluted)
Ratio: 1 teaspoon miso paste diluted in 1 tablespoon water per 1 tablespoon fish sauce

Diluted miso paste adds umami and salt but can slightly increase dough density if overused.

Coconut Aminos
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Coconut aminos provide a mild, slightly sweet umami flavor with less salt, which may require salt adjustment.

Vegetable Broth (concentrated)
Ratio: 1 tablespoon concentrated vegetable broth per 1 tablespoon fish sauce

Concentrated vegetable broth adds mild umami but lacks salt intensity, requiring salt adjustment and careful moisture control.

Dairy-Free Fish Sauce Substitutes for Biscuits

Full Dairy-Free guide →
Soy Sauce
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Soy sauce adds umami and saltiness with a thinner consistency, which blends well into biscuit dough without affecting texture.

Tamari
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Tamari is a gluten-free soy sauce alternative that provides similar umami and saltiness, suitable for gluten-sensitive individuals.

Miso Paste (diluted)
Ratio: 1 teaspoon miso paste diluted in 1 tablespoon water per 1 tablespoon fish sauce

Diluted miso paste adds umami and salt but can slightly increase dough density if overused.

Coconut Aminos
Ratio: 1 teaspoon per 1 tablespoon of fish sauce

Coconut aminos provide a mild, slightly sweet umami flavor with less salt, which may require salt adjustment.

Vegetable Broth (concentrated)
Ratio: 1 tablespoon concentrated vegetable broth per 1 tablespoon fish sauce

Concentrated vegetable broth adds mild umami but lacks salt intensity, requiring salt adjustment and careful moisture control.

❌ What NOT to Use as a Fish Sauce Substitute in Biscuits

Worcestershire Sauce

Worcestershire Sauce contains vinegar and spices that can alter the biscuit’s texture and flavor profile, making it tangier and potentially disrupting the tender crumb.

Anchovy Paste

Anchovy Paste is too concentrated and oily for biscuits, which can lead to uneven distribution and greasy spots, negatively affecting the biscuit’s light, flaky texture.

Seaweed Extract

Seaweed Extract imparts a strong marine flavor and moisture that can make biscuits dense and overly moist, compromising their characteristic flakiness.

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