Sesame cookies, Lebanese-style Barazek, are a bakery favorite and so fun and easy to make at home. They are thin, crisp little cookies with sesame seeds on one side and pistachios on the other.
In the bowl of a stand mixer fitted with the whisk attachment, cream the butter, brown sugar, and confectioners’ sugar on medium speed until light and fluffy, 2 minutes.
Stop to scrape down the bowl. Add the vanilla and egg and beat on medium-high speed until the egg incorporates fully and the batter becomes thick and smooth, 2 more minutes.
In a medium mixing bowl, whisk together the flour, baking powder, baking soda, and sea salt. Add to the butter mixture and beat just until fully combined and no dry spots remain.
Arrange an oven rack in the middle position and preheat the oven to 350°F (165°C). Line two baking sheets with parchment paper. Finely chop the pistachios and place them in a small bowl. Place the sesame seeds in another small bowl.
Divide the dough into pieces about 9 grams each.Roll each piece into a ball between your palms, then flatten the ball slightly, about ¼-inch (6 mm) thick, in your hand. Press one side of the dough in the sesame seeds, allowing the circle to stick to your fingers. Lift and press 3 to 4 times, coating this side of the cookie with as many sesame seeds as possible. Flip over the dough disc and press it gently into the chopped pistachios, knocking off any excess.
Bake the cookies for 17-19 minutes, until golden brown. Remove the pan from the oven and cool the cookies completely before transferring them to wire racks to cool completely.