SALTED BUTTER IN COOKIES RECIPES

Steps:

• Combine butter and granulated sugar in a large bowl; scrape in vanilla seeds and discard pod. Using an electric mixer on high speed, beat until very light and fluffy, about 5 minutes. Beat in 1 egg. Reduce speed to low; gradually mix in 2 cups flour. Form dough into a ¾"-thick disk. Wrap in plastic and chill until firm, about 2 hours.
• Place racks in upper and lower thirds of oven and preheat to 350°. Let disk of dough sit at room temperature until slightly softened, about 5 minutes. Roll out on a lightly floured sheet of parchment paper, shifting often on sheet and dusting with more flour as needed to keep from sticking, until about ¼" thick.
• Punch out rounds with large cutter; punch out centers with smaller cutter. Transfer to parchment-lined baking sheets, spacing 1½" apart. Pat scraps into a ¾"-thick disk. Chill 15 minutes.
• Beat remaining egg in a small bowl with 1 tsp. water; brush cookies with egg wash; sprinkle with sanding sugar. Freeze 10 minutes. Bake, rotating baking sheets halfway through, until edges are golden brown, 10–15 minutes. Transfer to wire racks; let cool. Repeat with scraps and remaining egg wash and sanding sugar.
• Do Ahead: Dough can be made 1 month ahead; freeze. Cookies can be baked 2 days ahead; store airtight at room temperature.

Steps:

• Line two rimmed baking sheets with parchment paper. Using a stand mixer fitted with the paddle attachment or an electric hand mixer, beat the butter, both sugars and vanilla on medium-high till it’s super light and fluffy (3 to 5 minutes for a stand mixer; 6 to 8 for a hand mixer). Using a spatula, scrape down the sides of the bowl and, with the mixer on low, slowly add the flour, followed by the chocolate chunks, and mix just to blend. If necessary, knead the dough with your hands to make sure the flour is totally incorporated. At this point, the dough should be smooth and feel like Play-Doh with no pockets of flour.
• Divide the dough in half, placing each half on a large piece of plastic wrap. Fold the plastic over so that it covers the dough to protect your hands from getting all sticky. Using your hands, form the dough into a log shape; rolling it on the counter will help you smooth it out, but don’t worry about getting it totally perfect. (Don't be afraid to make them compact. Shortbread is supposed to be dense. That's part of why it's so good.) You can also do this using parchment paper, if you prefer, but plastic wrap is easier when it comes to shaping the log. Each half should form a 6-inch log, 2 to 2¼ inches in diameter. Chill until totally firm, about 2 hours.
• Heat the oven to 350 degrees. Brush the outside of the logs with the beaten egg and roll them in the demerara sugar (this is for those really delicious, crisp edges).
• Using a serrated knife, carefully slice each log into ½-inch-thick rounds (if you hit a chocolate chunk, slowly saw back and forth through the chocolate). If the cookies break or fall apart, just press them back together — the dough is very forgiving. Place them on the prepared baking sheets about 1 inch apart (they won’t spread much). Sprinkle with flaky salt. Bake until the edges are just beginning to brown, 12 to 15 minutes. Let cool slightly before eating them all.