Um, recipe is too grand a word for it.
This is what I did:
Take lots of root veg. I used a big celeriac, a couple of beetroot, and a couple of sweet potato. (You need a fair amount of something bland, all beetroot would be a bit much I think.) Also, some onions, if you like them.
Grate all the veg.
Then squeeze it in cheesecloth/muslin to get out as much moisture as possible. This is really important, it's what keeps it from being soggy.
Add some eggs. I used four, but it came out a big eggy. Also, some spoonsful of plain flour. I think I used about four, it didn't come out floury at all. Mix it all together.
Heat up some oil (I used groundnut), maybe half a cm deep. Grab a handful of the vegetables, and squeeze it tight, then put it down in the oil. Squish it fairly flat (1cm? 1.5?), and cook it at a fairly low temperature. Try not to turn it or fiddle with it for a few minutes at least, so the bottom bit will fuse together.
Tastes good with soured cream, or greek yogurt.