Over the years I have tried to recreate the nation's favourite street food at home, with so-so but acceptable (to me) results. See https://cookingeasttowest.blogspot.com/2015/11/hungarian-fried-dough-langos.html and https://cookingeasttowest.blogspot.com/2016/05/native-american-fried-bread.html
Am glad I found this following recipe which is easy and comes with video instructions.
Hungarian Fried Bread { Lángos II }
via https://www.nosalty.hu/recept/igazi-strandos-langos
Makes 4 regular-size / 7 mini-size
300gm Bread flour
10ml lukewarm milk
150ml water
25g fresh yeast
1 tsp salt
1 tsp icing sugar
Topping suggestions
3 cloves of garlic, mince
200ml sour cream
200gm cheese
Method :-
1) In a cup, add lukewarm milk, fresh yeast and icing sugar for 10 mins. to activate the yeast.
2) In a bowl, sift in bread flour and salt, make a well, add in the proof yeast and about 150ml of water. Mix it well and let it rest for an hour at a warm place covered with kitchen cloth.
3) Heat up vegetable oil to deep fry. Tear a ball off the dough, stretch it (see video in link given) and fry until golden brown.
4) Serve hot , top with topping of choice.