Sift the flour and salt. Make a well in the centre and add water, egg and olive oil.
Mix well until soft dough forms. Knead until smooth.Divide the pastry into 12 walnut-sized pieces and roll each piece into a tight ball. Place on a floured surface and leave to rest for 15 minutes under a slightly damp towel.Take a piece of pastry and put it on the lightly floured work surface and roll it out into a circle (30 cm diameter) Spread the butter and tahini over the circle of dough and roll it up tightly. Then roll it again into a circle in a spiral shape.Press out each circle of dough then roll it again gently and place it on a greased oven tray.Repeat the 4th- 5th and 6th steps for all the pieces of dough.Bake the katmer in a preheated oven at 200 C º for 20 minutes.After they are baked, sprinkle with icing sugar or serve hot with jam or honey.
NoteAs you coat the dough with tahini and butter, you may sprinkle a little sugar on.