1 1/2sticks cold unsalted butter, cut into 1/2 inch cubes
1large egg yolk
1/2cuphazelnuts, optional garnish
Instructions
Process ground hazelnuts, confectioners sugar, light brown sugar, and cocoa powder in a food processor for about 20 seconds.
Add flour and salt, pulse for an additional 5 seconds to combine. Scrape down sides if necessary. Add the butter pieces over the dry ingredients and pulse until dough resembles damp sand for about 18 seconds.
While machine is running add the egg yolk and process until the dough comes together and forms a ball, approximately 20 seconds.
Cut two sheets of parchment paper. Divide dough in half, form two 4-inch thick logs and wrap each with a sheet, and place in refrigerator to chill for at least 2 hours.
When ready to bake, preheat oven to 325°F. Line two baking sheets with parchment paper or Silpat's.
Unwrap dough logs, with a sharp knife slice 1/4 inch thick cookies. Place cookies on baking sheets spaced about 3/4 inches apart. Press an unsalted roasted hazelnut in the center of each cookie if desired.
Bake for about 17 minutes, rotating the pan halfway through. Allow cookies to cool on the cookie sheet for 3 minutes then transfer to a wire rack until they have cooled completely.
Notes
Recipe adapted from Daydreamer Desserts
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.