I have been doing a lot of research on wartime recipes, and came across this one from someone who was growing up in post war Berlin, They had barely any food and made Britains rations seem huge. This uses potatoe peelings and I think it must be like a rosti.

Kartoffell puffer  -   potatoe pancakes

potatoe peelings and small pieces of potatoe

a handful of flour

salt and pepper

cut the potatoe peelings into very small pieces,  mix with the flour, season. Then fry them in a small amount of fat