I make hash browns by buying a bag of Bob Evans, throwing in some Canola, and browning. I don't like the "southern style" which are diced.
I haven't had a lot of luck with my own potatoes, though. They don't seem to brown very well and just get soggy/greasy. Never heard of putting flour anywhere near the potatoes.
This recipe calls for using oil AND butter...maybe that helps with browning and crisping.