The amount of flour needed will depend on how much leftover mash you have. The above quantities give you an idea of the ratio of mash to flour.

Add the flour to the mash and mix well, you should have a dough like texture which is easy to manage and not sticky

Grab a large chopping board and cover with a bit of flour, so it doesn't stick when you roll it

Roll the mixture out to about 2-3mm thick (depends how you like your tatties!)

Grab a small plate or saucer and cut around it to make a nice circle

Then cut into even wedges

Prick the wedges with a fork

Put a little bit of oil in a pan on a medium heat