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July 22, 2026

black bean sauce

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I love making stir-fry sauces as they are usually very simple – requiring little more than a splash of various ingredients from several bottles, plus some garlic and ginger.

Black bean sauce has always intrigued me though, as it contains something I’ve never used before. Black beans of course.
Now we are not talking about canned or dried black beans. Black bean sauce calls for fermented black beans, also known as douchi. These are black soybeans that have been fermented and salted.

I have to admit, I really didn’t want to go to the effort (6+ months) of fermenting black beans myself, but luckily you can buy them in packets, already fermented!

Ingredients?

Ingredients for homemade black bean sauce on a wooden board.

Most of the ingredients for black bean sauce are very easy to find in almost any mid-sized supermarket. It’s just the beans that can be a little harder to find.

You should be able to pick them up at any Asian supermarket, or if you don’t have one close by, Amazon sells them too.

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