Mix flour, water, salt and olive oil until you get a nice dough. If you see that it requires additional water or flour, add accordingly. Divide the dough into balls and roll each one out with a rolling pin. Crumble the feta cheese in a bowl and season with a little pepper. Stuff with the feta cheese according to taste and fold each piece either like an envelope or into a snail.
Fry in piping hot oil until golden brown.
It's best to poke a little the tiganopsoma with a fork so that the dough cooks well, even though if you roll it out with a rolling pin, it should be ok.
Spread them out for a while on kitchen paper so that it absorbs the excess oil and... ready!!!
