Ingredients

  • 1/2 cup slivered almonds (2 1/2 ounces)
  • 1/2 cup chopped walnuts (2 1/2 ounces)
  • Two 5 inch long plain biscotti, coarsely crushed
  • 6 tablespoons (3/4 stick) unsalted butter, cut into 1/2-inch pieces, at room temperature
  • One 12-ounce bag semisweet chocolate chips, such as Ghirardelli
  • 1/4 cup brewed coffee
  • 1 teaspoon grated orange zest (about 1/2 medium orange)
  • 1/2 cup confectioners' sugar

Method

  • Position a rack in the center of the oven and preheat the oven to 350 degrees F.
  • Spread the almonds, walnuts and crushed biscotti in a single layer on a baking sheet.
  • Bake until the nuts are lightly toasted, 6 to 8 minutes.
  • Cool completely.
  • Put the butter and chocolate in a heatproof medium bowl and place the bowl over a pan of barely simmering water.
  • Stir until the chocolate has melted and the mixture is smooth, about 6 minutes.
  • Stir in the coffee until smooth.
  • Add the almonds, walnuts, biscotti pieces and orange zest, and stir until combined.
  • Cover the bowl and refrigerate until firm but moldable, 1 1/2 to 2 hours.
  • Divide the chocolate mixture in half.
  • Place half of the mixture in the center of an 18-inch-long piece of plastic wrap.
  • Using a spatula, form the mixture into a log, about 7 inches long and 2 inches in diameter.
  • Roll up the log in the plastic and twist the ends to seal.
  • Roll back and forth on a work surface a few times to make the log evenly round.
  • Repeat with the remaining chocolate mixture.
  • Refrigerate the logs until firm, about 1 hour.
  • Spread the confectioners' sugar on a dinner plate.
  • Remove the plastic wrap from the logs, then roll them in the sugar until coated.
  • Using a pastry brush, brush away the excess sugar.
  • Let the logs sit at room temperature for 15 minutes.
  • Using a sharp serrated knife, cut the logs into 1/2-inch-thick slices and serve.
  • Cook's Note: The dessert can be frozen for up to 1 month.
  • Thaw at room temperature for 25 minutes before slicing.