McDonald's Is Releasing a Purple Potato Shake in Japan

This fall, McDonald's is rolling out a special sweet potato shake for a limited time. It's purple!

The flavor is "murasaki imo" (紫いも), which means "purple sweet potato" in English. Note that this is not a yam! It is very much a fall food.

According to website Entabe, the purple shake will go on sale from September 10 in Japan.

マックシェイクに「紫いも」味!紫いものコクとミルクがベストマッチ [Entabe]

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