Potato waffles are a potato based savoury food in a waffle like lattice shape. They are common in the UK and Ireland and are also available in some other countries.

They are made of reconstituted potato, oil, and seasonings. They may be baked, grilled, or fried, and are used as a side dish, often together with sausages or bacon, or as a snack food. They are sold frozen and produced by various frozen food companies including Birds Eye and McCain Foods.  Contrary to popular belief, Potato Waffle’s are not actual waffle products.

Info gleaned from Wikipedia