Put the flour in a mixing bowl.
Add the sugar, the salt and the softened butter and mix together.
Add the eggs one by one. Knead the dough well and let sit for 2 hours.
Roll out the dough to ½ centimetre thick.
Cut the dough into 2x4-centimetre bands or use a cookie cutter.
Heat the oil for deep frying until very hot and fry the oreillettes for two minutes.
Remove from oil, place on absorbent paper and sprinkle with confectioner's sugar.