Why makes these cookies so irresistible? Is it their glossy, maple-brown bumpy tops? Or their thin, crackly shells, caving into fudge-brownie middles with toasted walnut studs? Maybe it's their head-scratching ingredient list: no flour, butter or oil. Either way, we can't get enough! GET THE RECIPE ►► https://f52.co/2P5V79tINGREDIENTS2 3/4 cups (275g) walnut halves3 cups (350g) confectioners' sugar1/2 cup plus 3 tablespoons (70g) Dutch-processed cocoa powder1/4 teaspoon kosher salt4 large egg whites, at room temperature1 tablespoon pure vanilla extractSUBSCRIBE TO FOOD52 ►► https://f52.co/2HN7Dp8CONNECT WITH FOOD52 Web: https://food52.com Facebook: https://www.facebook.com/food52 Instagram: https://www.instagram.com/Food52 Pinterest: https://www.pinterest.com/food52 Twitter: https://twitter.com/Food52 Food52 newsletter: https://f52.co/newsletter ABOUT FOOD52 As a one-stop shop for joyful living, Food52 connects discerning home cooks with the interests they're passionate about via award-winning food and lifestyle content across platforms. We provide our audience with the recipes and solutions they crave to eat thoughtfully, live joyfully, entertain beautifully, and travel differently.