# Put the granulated sugar
, warm water and yeast into a deep bowl, mix it until the sugar
and the yeast dissolve totally via your fingertips.
# Add yogurt
, 1 egg, egg white of the remaining one, mahaleb, salt, vegetable oil and margarine which is softened at room temperature, after mixing them it well add flour
little by little while kneading the dough, make the dough reach medium consistency.
# Cover the dough and rest for 1 hour at least at warm place.
# Divide the rested dough into 18 equal pieces. Shape each piece as bars with 10 inches length and then get both ends together, place them onto the greased oven tray with some spaces between them.
# Prepare some of the buns with sesame, and spread yolk and sprinkle nigella seeds all over the remaining ones.
# Dip the buns which will be prepared with sesame into the mixture of sugar
which is dissolved in 1/2 cup water, and then cover them onto the sesame on a flat plate.
# Rest the buns for half an hour, then place the baking tray into the oven which is preheated to 410 F for a while, and bake them until they turn to red.
# Serve them fresh.