[header] How to make sweet potato mash [title] Peel and cut the sweet potatoes. [step] Use a vegetable peeler to remove the skin from the sweet potatoes, then rinse the bare sweet potatoes with running water. Cut each one into 2-inch (5-cm) chunks. 
[substeps] Since you'll be removing the skins from the sweet potatoes, there's no need to scrub them clean beforehand. A simple rinse after peeling the spuds should be enough to remove any residual dirt from the flesh.