Dark Chocolate-Hazelnut Sables

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  • Level: Easy
  • Total: 2 hr 20 min
  • Active: 40 min
  • Yield: about 48 cookies
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Ingredients

3 ounces bittersweet chocolate, broken into pieces

1/2 cup blanched hazelnuts

1 1/3 cups all-purpose flour

1/3 cup unsweetened Dutch-process cocoa powder

1/4 teaspoon baking soda

1/4 teaspoon salt

1 stick unsalted butter, at room temperature

1/4 cup granulated sugar

1/4 cup packed light brown sugar

1 large egg

1/2 teaspoon pure vanilla extract

Coarse sugar, for decorating

Directions

  1. Pulse the chocolate in a food processor until finely chopped; transfer to a bowl. Add the hazelnuts to the food processor and pulse until finely chopped; transfer to the bowl with the chocolate.
  2. Whisk the flour, cocoa powder, baking soda and salt in a medium bowl. Beat the butter, granulated sugar and brown sugar in a large bowl with a mixer on medium-high speed until light and fluffy, about 3 minutes. Add the egg and vanilla and beat until combined. Reduce the mixer speed to low; beat in the flour mixture and chocolate and hazelnuts, then increase the speed to medium high and beat until combined.
  3. Divide the dough between 2 sheets of parchment paper; roll each into a 1-by-9-inch log, using the parchment to help you. Wrap and refrigerate until firm, at least 1 hour.
  4. Position racks in the upper and lower thirds of the oven; preheat to 350 degrees F. Line 2 baking sheets with parchment paper. Unwrap the logs and slice into 1/4-inch-thick rounds; arrange 1 inch apart on the prepared baking sheets. Sprinkle with coarse sugar. Bake until set, 15 to 20 minutes. Let cool 5 minutes on the baking sheets, then transfer to racks to cool completely.