Easy to make, pretty to look at, tasty to eat – this dish could be called triple happiness beans.
I assume the “double” refers to the two types of bean involved – Chinese black beans and fresh green beans.
These are not the same black beans that feature in Mexican recipes like sweet potato and black bean tacos, but soybeans that have been dried and fermented with salt.
Pungent and intensely salty, Chinese black beans should be soaked before use to avoid overpowering the other ingredients.
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