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What Is Soy Butter Sauce?

Soy butter sauce is a creamy, umami-rich condiment that marries the earthy depth of soy sauce with the luxurious smoothness of butter. This fusion creates a versatile topping that can elevate any dish, from vegetables to proteins. Intrigued by how this sauce can transform your meals? Discover the simple steps to make your own and the secret to its irresistible flavor.
Carol Luther
Carol Luther

Asian-fusion soy butter sauce is a cooked sauce that blends butter with soy sauce. When combined, the two main ingredients produce a flavor that fits the fifth taste — umami, or savory. Food scientists put foods and beverages that do not fit in the categories of salty, sweet, bitter or sour into this taste category. Soy sauce contains large amounts of glutamate, the amino acid most commonly associated with umami. Pairing soy sauce with butter produces a hearty or meaty tasting sauce with a depth that neither ingredient has on its own.

Basic soy butter sauce simply requires that one heat the desired amount of soy sauce to a boil. One then adds chunks of butter, stirring between each addition so the butter melts into the sauce. A wire whisk commonly is used to thoroughly blend the two ingredients. After incorporating the butter, one generally removes the sauce from the heat, though one can continue cooking the sauce to reduce it and intensify the flavor, if desired.

Soy butter sauce often includes shallots.
Soy butter sauce often includes shallots.

The marriage of butter's sweetness and savory soy sauce produces a sauce with a denser texture than plain melted butter; it is an emulsion that stays mixed once cooked. Adding butter gives the soy sauce body and thickens it. Recipe variations for soy butter sauce generally incorporate additional ingredients that enhance the basic emulsion.

Spicy soy butter sauces call for the inclusion of wasabi, a fiery horseradish-like root. This addition makes the sauce hot and spicy. Ginger also is a frequent addition to soy butter sauce. This spice also is a root with a spicy flavor. Unlike wasabi, ginger does not produce a hot or mouth-burning sensation when added to sauces.

Soy beans.
Soy beans.

Professional chefs have developed personalized versions of soy butter sauce by drawing from Western and Eastern culinary traditions. Common additions include shallots and green onions. Miso, a fermented soy paste, also appears in some recipes. A variety of hot seasonings such as pungent Chinese mustard, dried red pepper flakes and fresh local peppers have found a place in soy butter sauce recipes. Sherry, wine, brown sugar and honey also might appear in modified versions of this sauce.

Depending on the recipe used, one can use soy butter sauce as an ingredient in the dish, as a condiment added after cooking or as a dipping sauce. A number of foods are natural possibilities for the use of soy butter sauce. These range from pasta and tofu to steaks, fish, grilled vegetables and classic Asian stir-fry dishes.

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Discussion Comments


@talentryto- I think that your soy butter sauce will taste fine with unsalted butter. After all, soy sauce is already salty, and you are basically adding the butter for the fat, not the salt.

If you are planning to use your soy butter sauce on fish dishes, you should also try adding a little bit of lemon juice to the mixture. This will add zesty flavor to the sauce, and compliment the flavor of all types of Asian fish dishes.


@talentryto- I don't think that using unsalted butter will negatively affect the flavor of your soy butter sauce. On the contrary, I think that soy sauce and salted butter together would make a sauce that would be much too salty for most peoples' tastes.

I love the flavor of soy sauce and butter, so I don't think that the salt in either of them is the reason they are so good. If you are trying to cut way back on your sodium intake, I think that you could make your soy butter sauce with low sodium soy sauce and salt-free butter. Even with the limited amount of sodium of the two ingredients, I think that you will find that your sauce turns out delicious.


I want to make some soy butter for several fish dishes, but I am also trying to cut back on the amount of salt that I eat. I'm wondering if it is o.k. to make soy butter sauce with unsalted butter, or if this will make it less flavorful.

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    • Soy butter sauce often includes shallots.
      Soy butter sauce often includes shallots.
    • Soy beans.
      By: terumin
      Soy beans.