Whole-wheat grapefruit bran biscotti

Ingredients

• 1 Florida Ruby Red grapefruit
• 1/3 cup soft non-hydrogenated margarine
• 1/2 cup brown sugar (packed)
• 2 eggs
• 1 tsp vanilla
• 2 1/3 cups whole-wheat flour
• 1/2 cup natural bran
• 1/2 tsp baking powder
• 1/2 tsp baking soda
• 1/4 tsp aniseed (crushed)
• 1/4 cup dried cranberries