Pecan Shortbread Slices are one of those cookies you can make long in advance. They are rolled into a log, well wrapped, and can be refrigerated or frozen until you feel like baking. They are packed with toasted pecans and prepared with good cocoa and mini chocolate chips for extra chocolatey flavour.
In a mixing bowl, use a hand-held mixer to beat together the butter and sugar. Beat for 3 minutes or until the mixture is light and fluffy.
Next, add the flour and cocoa powder. If you used unsalted butter, add 1/4 teaspoon of salt now too. With your beater on a low setting, beat the dry ingredients into the butter and sugar mixture until well combined.
Finally, add in the toasted and cooled pecans, along with the chocolate chips. Use a wooden spoon to mix the nuts and chocolate into the cookie batter.
Finally, turn the dough out onto a sheet of parchment paper. Form the dough into a long log, about 18 inches in length.
Once formed, sprinkle the sanding sugar over the log, rolling the log gently so that the sugar sticks to the dough. Roll the log in the parchment paper and then into plastic wrap. Refrigerate for 1 hour.
When ready to bake, preheat your oven to 350 degrees F. Next, prepare a baking sheet by lining it with a silicone liner or with parchment paper and set it aside.
Remove the plastic wrap and parchment paper from the cookie log. Using a sharp knife, cut the log into 1/4 inch slices.
Lay the slices onto the prepared baking sheet about an inch apart. Bake for 10-12 minutes or until the bottom edge of the cookies have browned. Remove from oven and allow cookies to cool on baking sheet for 5 minutes. Remove and transfer cookies to a wire cooling rack to finish cooling.