http://www.theguardian.com/lifeandstyle/2013/dec/27/egg-free-vegetable-rosti-damson-chutney-recipe
Excerpt:
“Rostis are a type of potato cake. They make an excellent base for a relaxed post‑Christmas brunch, especially because you can prepare the mix the night before. Many rosti recipes include egg, but it’s not necessary, because you can exploit the natural clinginess of potato to hold it together.”