No-Salt Soy Sauce Substitute You Can Make at Home

This no-salt soy sauce substitute is a savory, pourable seasoning sauce made with unsalted vegetable broth, dried mushrooms, vinegar, and pantry spices. It brings salty-sour depth to stir-fries, marinades, and dipping sauces without adding table salt, though it is not sodium-free because ingredients can contain naturally occurring sodium.

Ingredients

2 cups (480 ml) unsalted or no-salt-added vegetable broth
2 medium dried shiitake mushrooms (about 5 g), stems included
1 tablespoon (15 ml) balsamic vinegar
1 tablespoon (15 ml) apple cider vinegar
1 tablespoon (20 g) unsulfured molasses
1 small garlic clove (about 3 g), peeled and lightly crushed
1 teaspoon (2 g) finely grated fresh ginger
½ teaspoon (1 g) onion powder
¼ teaspoon (0.5 g) freshly ground black pepper

Instructions

Prepare the aromatics. Lightly crush the garlic and grate the ginger. Check the broth label to confirm that it is unsalted or no-salt-added; regular broth can make the finished sauce much saltier than intended.
Combine the broth, dried shiitake mushrooms, balsamic vinegar, apple cider vinegar, molasses, garlic, ginger, onion powder, and black pepper in a small saucepan. Stir until the molasses is mostly dissolved.
Bring the mixture to a gentle simmer over medium heat, then lower the heat so it bubbles lightly rather than boiling hard. Simmer uncovered for 25 minutes, stirring two or three times. The mushrooms and aromatics infuse the broth while it reduces and becomes more concentrated.
Set a fine-mesh strainer over a heat-safe measuring jug or bowl. Pour the sauce through it, pressing the mushrooms gently with the back of a spoon to release their liquid. Discard the solids, or save the softened mushrooms for a cooked filling or stir-fry.
Let the strained sauce cool for 10 minutes, then taste it. It should be savory, lightly sweet, and tangy. Pour it into a clean, covered container; the yield is about 1¼ cups (300 ml), depending on how much the broth reduces.

Tips

Choose the right broth. “Low sodium” broth still contains added salt in many cases, so look for “unsalted” or “no salt added” on the label. If only low-sodium broth is available, the result will still work but will not be a no-salt-added substitute.
Keep the simmer gentle. A vigorous boil can reduce the liquid too quickly and make the vinegar taste harsh. If the sauce gets more concentrated than you want, stir in a tablespoon of water at a time after straining.
Adjust sweetness and tang carefully. Molasses gives the sauce color and a rounded flavor, but too much can make it taste like a glaze. If you prefer it less sweet, use 2 teaspoons (about 13 g) instead of 1 tablespoon. Add extra vinegar a teaspoon at a time only after tasting.
Remember that “no salt added” is not “zero sodium.” Broth, mushrooms, and other ingredients can contribute naturally occurring sodium, and labels vary. If you need to track sodium for a specific reason, check the nutrition labels and calculate the amount in your finished portion rather than assuming it is sodium-free.

Serving Suggestions

Use this sauce as a measured seasoning rather than pouring it freely like regular soy sauce. Start with 1 tablespoon (15 ml) for a two-serving stir-fry, taste after the vegetables or protein are cooked, and add more only if the dish needs it. The flavor is deliberately less salty than conventional soy sauce, so it works best alongside ingredients that add their own texture and savory character.

Stir a spoonful into cooked rice, fried rice, noodle bowls, or a vegetable sauté near the end of cooking. It can also season a soup, lentil bowl, or quick pan sauce; add it gradually so the vinegar does not dominate. For a dipping sauce, mix 1 tablespoon (15 ml) with 1 teaspoon (5 ml) rice vinegar and a little sliced scallion. Serve the dip with dumplings, cooked vegetables, or tofu.

For a simple marinade, combine 2 tablespoons (30 ml) of the sauce with 1 tablespoon (15 ml) neutral oil, a little grated ginger, and a squeeze of citrus. This quantity is enough to coat about 1 pound (450 g) of vegetables or tofu. Keep marinating food in the refrigerator, and discard marinade that has been in contact with raw ingredients rather than using it as a finished dipping sauce.

Variations

Make it gluten-free: The ingredients listed are naturally gluten-free in many cases, but check every label, especially the broth, vinegar, and spices, for cross-contact or added ingredients. Traditional soy sauce contains wheat; this recipe does not use it.
Use another mushroom: Dried porcini can replace the shiitakes in the same amount. They make the sauce earthier and more robust. A small amount of dried kombu can also add savory depth, but it may contribute sodium and a more sea-like flavor, so check its label and use a small piece.
Make it without molasses: Replace the molasses with 2 teaspoons (10 ml) maple syrup or brown sugar. The sauce will be lighter in color and less bittersweet. Add the substitute near the beginning so it dissolves evenly.
Give it a brighter profile: Replace the balsamic vinegar with 1 tablespoon (15 ml) rice vinegar for a lighter, less sweet flavor. If you use rice vinegar, keep the molasses; together they help balance the sauce’s sharper edge.
Add gentle heat: Simmer a small pinch of red pepper flakes with the other ingredients, then strain as directed. Start with ⅛ teaspoon (about 0.3 g); the heat becomes more noticeable as the liquid reduces.

Storage and Reheating

Transfer the sauce to a clean, covered container and refrigerate it within 2 hours of cooking. Use it within 3 to 4 days, keeping the container closed between uses. Because this is a homemade broth-based sauce without a preservation process, do not store it at room temperature or treat it as shelf-stable.

For longer storage, freeze the cooled sauce in small portions for up to 2 to 3 months for best quality. An ice-cube tray is useful if you usually need just a tablespoon or two; once the portions are solid, move them to a freezer-safe container. Thaw a portion overnight in the refrigerator or gently in a small saucepan. If reheating a larger amount, warm it over low heat and stir; avoid a hard boil, which can make the sauce too concentrated. Do not repeatedly warm and cool the full batch.

Frequently Asked Questions

Is this the same as soy sauce?

No. It is a savory seasoning sauce designed to stand in for soy sauce in recipes, not a replica of fermented soy sauce. The mushrooms supply earthy savoriness, while vinegar and molasses add tang and color. It tastes less salty and somewhat brighter, so begin with a smaller amount than a recipe calls for and adjust to taste.

Can I use coconut aminos instead?

You can use coconut aminos as a convenient alternative, but check its nutrition label because many products contain sodium even though they are not made with soy sauce. It is usually sweeter and milder than soy sauce. If substituting it in this homemade recipe, leave out the molasses at first and taste before adding any sweetener.

Can I make the sauce without mushrooms?

Yes, but the flavor will be less deep and earthy. Simmer the broth with the remaining ingredients and taste after straining; a small extra splash of balsamic vinegar can add complexity, though it will not reproduce the mushroom flavor. You can also use another dried edible mushroom, such as porcini, if available.

Why does my sauce taste too sharp or too sweet?

Vinegar can seem sharp when the sauce is hot, so let it cool before making a final adjustment. If it is still too tangy, stir in a little more unsalted broth or water. If it tastes too sweet, add a teaspoon of vinegar and a tablespoon of broth, then taste again. Make changes in small amounts because the reduced sauce is concentrated.

How much should I use in place of soy sauce?

Start with about three-quarters of the soy sauce quantity listed in the recipe, then taste and add more as needed. For example, if a stir-fry calls for 2 tablespoons (30 ml), begin with 1½ tablespoons (22 ml). The substitute has a different balance of sweetness and acidity, so the best amount depends on the other ingredients and on how strongly flavored you want the finished dish.

Can I double the batch?

Yes. Double each ingredient and use a saucepan with enough room for the liquid to simmer without splashing. The cooking time may be longer because there is more liquid to reduce, so judge it by the sauce’s flavor and yield rather than relying only on the clock. Strain it, cool it, and refrigerate or freeze it using the same storage guidance.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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