1. Whisk whole-wheat pastry flour, all-purpose flour, cocoa, baking soda and salt in a medium bowl.
2. Blend brown sugar, granulated sugar and butter in a large bowl with an electric mixer on medium speed until combined and still a little grainy, about 5 minutes. Beat in egg white and vanilla until smooth. Turn the mixer off; add the flour mixture then beat at low speed until well combined (the dough will still be crumbly). Gather the dough into a ball using your hands.
3. Lightly dust a work surface with flour, turn the ball of dough out onto it and form into an 8-inch-long log, about 2 inches in diameter. Wrap in plastic wrap and refrigerate until firm, at least 2 hours or up to 2 weeks (see Tip).
4. When ready to bake, position racks in the upper and lower thirds of the oven; preheat to 350°F. Line 2 large baking sheets with parchment paper or silicone baking mats.
5. Unwrap the log and slice into 1/4-inch-thick rounds, rolling the log as you slice to prevent it from flattening. Place the cookies 1 inch apart on the baking sheet. Bake, switching the pans back to front and top to bottom halfway through, until just beginning to crack along the edges, 10 to 12 minutes. Cool on the baking sheet for 2 minutes, then transfer to a wire rack to cool completely, about 20 minutes.
Tip: While the round log of dough is chilling, it will flatten on one side, resulting in irregularly shaped cookies. To keep the log (and the cookies) round, split open a cardboard tube, such as a paper towel tube, and lay the log inside the tube before refrigerating.
More From Kitchen Daily:
Provided by: EatingWell
Per Single Serving / Serves 30 Total
- Calories 73 4%
- Calories from fat 18 10%
- Total Fat 2gm 2%
- Saturated Fat 2gm 1%
- Sodium 32mg
- Total Carbohydrates 13gm 3%
- Fiber 1gm
- Protein 1gm 1%
- Cholesterol 6mg
Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.