Chocolate-Pistachio Biscotti Recipe

Ingredients

• Nonstick cooking spray
• 2 cups unsifted all-purpose flour
• 1 cup granulated sugar
• 1/3 cup Dutch-processed unsweetened cocoa powder
• 1 tsp. baking soda
• 1/2 tsp. salt
• 1 Tbsp. each instant espresso powder and hot water
• 1 tsp. vanilla extract
• 2 large eggs
• Whites from 2 large eggs
• 2(1oz.)squares unsweetened chocolate, melted, cooled
• 1/2 cup coarsely chopped unsalted pistachio nuts