In a large bowl put the egg, yogurt, olive oil, the butter (melted and cooled) and salt. Stir well. Add flour (mixed with the baking powder) and is kneaded dough, which is left for 20 minutes. The dough balls are removed, which are made of strips and twisted to ropes. Finished ropes are placed on baking paper, smeared with yolk, sprinkle with sesame seeds and bake in preheated oven until light brown - about 20 minutes.