1. In a large mixing bowl, combine cooked yams, orange juice, rind, brandy (if using), salt, ground ginger, butter, and brown sugar. Pour mixture into a shallow baking dish.
2. Mix together praline topping, and pour evenly over potato mixture.
3. Bake at 350°F for 30 to 45 minutes until golden brown and bubbly. Allow to cool for 10 minutes before serving.