Yeast mix with salt and sugar, add lukewarm milk, then add the beaten eggs. The flour is sieved and the mixture is poured. Messi to give a homogeneous soft paste. Cover with Greased foil and leave to rise for 1 hour in a warm place. Should increase volume 3 times. Melting the butter, Smash the feta cheese. Pan wash hands and make a ball as an egg, and then it spread out of his hand and put in the middle along feta cheese, roll up it to roll and tied it into a knot. Repeat the same for each ball. Redim them in an oiled dish, while leaving a little space between them. Once ready leave them in the tray for 30 minutes before bake (again warm). Bake in a highly-heated oven for 15 minutes, then reduced to 180 C and baked 30-40 minutes until golden.