How to make purple sweet potato buns

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  1.Steamed and ground with a spoon

• 2.Add flour and warm water to activate the yeast, then apply a layer of cold water on the surface

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  3.Cover it with a bag and put it in the sun

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  4.Similarly, White flour works just as well, cover with water

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  5.Twice the size in about an hour

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  6.Make it how you want, steam it in a hot water pot for 25 minutes, and you're done

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  7.That's it