Answer :
Final answer:
Azuki beans are the key ingredient in making Anko, a sweet red bean paste in Japanese desserts.
Explanation:
Anko is a sweet red bean paste commonly used in Japanese desserts. The key ingredient used to make Anko is the Azuki beans, which are small red beans. These beans are cooked and sweetened to create the paste that is a vital component in many traditional Japanese sweets.
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