Pumpkin Pie Biscotti

Ingredients

• 3-1/2 cups all-purpose flour
• 1-1/2 cups firmly packed brown sugar
• 2 teaspoons baking powder
• 1/2 teaspoon salt
• 2 teaspoons pumpkin pie spice
• 1/2 cup mashed canned pumpkin
• 2 large eggs, lightly beaten
• 1 tablespoon vanilla extract
• 2 tablespoons butter or margarine
• 1-1/4 cup macadamia nuts, coarsely chopped