Dissolve the yeast in warm water. Sift flour into a large oven dish and make a well in the middle. Set aside the yolk of one egg and add all the products to the well - milk, eggs, olive oil, salt and sugar, and the dissolved yeast.
Knead a soft dough and let it rise. Then divide it into 12 parts. From each part, roll about a foot-long rectangle and roll it up or shape it as desired. Arrange them on a tray with baking paper or a greased tray and leave to rise again.
Brush with the beaten with a little water egg yolk, and if desired, sprinkle with poppy, sesame or other seeds and put to bake in a moderate oven.