Food & Cooking Recipes Dessert & Treats Recipes Cookie Recipes Mocha Shortbread 3.1 (23) 2 Reviews By Martha Stewart Martha Stewart Martha Stewart is a bestselling author, entrepreneur, and lifestyle expert who has taught millions of people through generations the joy of entertaining, cooking, gardening, collecting, crafting, and home renovating via her eponymous magazine, Martha Stewart Living, Emmy-winning television shows, and 99 books (and counting). Based in Katonah, N.Y., where she helms her 156-acre Bedford Farm, Martha is America's first self-made female billionaire. Editorial Guidelines Updated on May 5, 2021 Rate PRINT Share Close Prep Time: 30 mins Total Time: 2 hrs 15 mins Yield: 4 dozen Bake these mocha shortbread cookies 30 minutes for a softer texture, or 35 minutes for a more traditional crumbly texture. Ingredients 2 cups all-purpose flour ¼ cup unsweetened cocoa powder ½ teaspoon coarse salt 2 sticks unsalted butter, room temperature 1 cup sugar 2 teaspoons pure vanilla extract 1 tablespoon instant espresso powder ½ cup cacao nibs Directions Whisk together flour, cocoa powder, and salt in a bowl. In another bowl, beat butter with a mixer on medium speed until fluffy, about 5 minutes. Gradually add sugar, beating until mixture is very light, about 2 minutes. Stir vanilla and espresso powder together in a small bowl; add to butter mixture. Scrape down sides of bowl and beat until combined and smooth, about 1 minute. Add flour mixture and beat on low speed until dough just comes together, about 1 minute. Beat in cacao nibs. Press dough evenly into a 9-by-13-inch baking pan lined with parchment. Cover with plastic wrap and smooth top with hands or the bottom of a dry measuring cup. Refrigerate until firm, at least 1 hour and up to 1 day. Preheat oven to 350 degrees. Use a paring knife to cut dough into 48 bars, 8 across short side and 6 down long side. Use a fork or skewer to poke holes in top of each bar. Bake until set, 30 to 35 minutes. Let cool in pan on a wire rack 10 minutes, then recut bars. Let cool completely in pan before serving. Bars can be stored at room temperature up to 3 weeks. Rate It PRINT