# Put the yeast and the sugar
into the warm water and mix.
# When the sugar
dissolves, add vegetable oil, egg white, salt and flour
little by little while kneading, and get smooth dough.
# Cover the dough with a moist fabric, and rest it for 1 hour.
# Pick lemon
sized pieces from the dough.
# Roll them to get oval pieces, place on the greased baking pan with spaces between them.
# Spread yolk on them, and rest it for half an hour on the pan. Preheat the oven to 356 F. Cook until their upper sides turn red.