Preheat the oven to 400 degrees.

In a medium bowl cream the butter and brown sugar.  Add in the egg and mix well.  Stir in the vanilla, cinnamon, ginger, and cardamom.

In a small bowl combine the flour, baking powder, and salt.  Add half of the flour mixture to the sugar mixture and mix well.

Add the milk to the mixture and mix well.  Add in the remaining flour and mix until a soft dough forms.  Gently stir in the pears.

Form the dough into a ball.  Place on a cutting board and flatten into a disc shape about 3/4 inch thick.

Using a pizza cutter, slice into 8 wedges.  Place the wedges on a baking sheet and bake for 18-20 minutes or until the bottoms are golden brown.  Remove from oven and cool.

In a bowl combine the powdered sugar, milk, and cinnamon.  Mix well.  Drizzle over top of the cooled scones.