Good-Cooking - Double Chocolate-Orange Biscotti

Ingredients

• 3 cups all-purpose flour
• 1/2 cup granulated sugar
• 1/2 cup firmly packed brown sugar
• 3 teaspoons baking powder
• 1/2 teaspoon salt
• 4 ounces unsweetened chocolate, melted, cooled
• 1 tablespoon grated orange peel
• 1/3 cup olive or vegetable oil
• 1/4 cup orange juice
• 2 teaspoons vanilla extract
• 3 eggs
• 6 ounces white chocolate baking bar, chopped
• 4 ounces white chocolate baking bar, chopped
• 1 tablespoon shortening