A savory Middle Eastern spice mix, zaatar typically includes sesame seeds, thyme, marjoram, and sumac and is often sprinkled onto pita bread spread with thick, strained yogurt (labneh). Here, we sprinkled zaatar onto puff-pastry straws and paired them with a creamy, garlicky yogurt dip. Prep and Cook Time: about 40 minutes. Notes: The amounts given here are just guidelines; use any amount of pastry you have on hand, but try to roll it into a rough rectangle to begin with. Find puff pastry in boxes in your supermarket's freezer section. Zaatar is available at Middle Eastern markets and gourmet grocery stores.
Preheat oven to 375°. Flour a work surface and a rolling pin. Set puff pastry on surface, sprinkle lightly with flour, and roll out into a rectangle about 8 in. by 12 in. and 1/8 in. thick. Arrange pastry so that it's horizontal and trim edges even.
Brush pastry all over with olive oil. Sprinkle left half of pastry liberally with half of the zaatar and fold right (unsprinkled) pastry half over zaatar, like closing a book. Lightly sprinkle top of pastry with flour and roll back out into a rectangle almost as large as the one you began with. As before, brush pastry with olive oil, sprinkle half with remaining zaatar, and fold unsprinkled half over zaatar. Roll with the pin a few times to seal.
With a sharp knife, cut pastry lengthwise into 1/3-in.-wide strips. Twist each strip loosely a couple of times and put on an ungreased baking sheet (push ends onto sheet to keep straw from untwisting; you may need 2 sheets). Dab tops of strips lightly with egg wash.
Bake straws until medium golden brown, 12 to 15 minutes. Let cool 1 minute, then loosen gently from sheet with spatula. Serve warm or cool, with Garlicky Yogurt Dip.