fig and walnut biscotti

INGREDIENTS

• 1 cup walnut pieces
• 1 cup dried Turkish or Calimyrna figs, quartered
• 3/4 stick (6 tablespoons or 3 ounces) unsalted butter, softened
• 1/4 cup granulated sugar, plus more for sprinkling
• 6 tablespoons dark brown sugar, packed
• 2 eggs
• 1 teaspoon pure vanilla extract
• Grated zest of 1/2 a large orange (I used a clementine)
• 1 3/4 cup plus 2 tablespoons (or 2 cups minus 2 tablespoons) unbleached, all-purpose flour
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/4 teaspoon kosher salt
• 1 teaspoon ground cinnamon
• 1/4 teaspoon. ground nutmeg
• 1/8 teaspoon ground cloves
• 1 egg white, lightly beaten