Mix all dough ingredients well and knead into a smooth dough. Let rest covered for about 30 minutes.
For the filling, briefly bring water and sugar to a boil and mix with the remaining ingredients.
Roll out the dough thinly and cut into strips about 10 cm wide. Place half a tablespoon of filling on one side, fold over, press the edges well and cut with a pastry wheel.
Heat the fat and fry until golden on one side, spooning hot fat over the top, then turn and fry the other side. Remove, drain on kitchen paper, plate and dust with powdered sugar.