Pour sweet potato batter mixture onto no. (5), level the surface. Steam for further 10 minutes.

把蕃薯面糊倒在做法(5)上面，铺平，继续蒸10分钟。

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Riding through the streets of the Condesa neighbourhood, for example, you encounter roving marimba players and the sweet potato vendor who pushes around a mobile oven with an ear-piercing steam whistle to herald his arrival.

BBC: Cycling the Aztec way