1. Preheat oven to 400°F and grease a 9-inch pan (I like a springform for unmoulding's sake.
2. Whisk together flour, baking powder, baking soda, and salt, set aside.
3. Beat cream cheese and brown sugar until fluffy.
4. Add anilla, ginger and egg, beating well.
5. Mix flour mixture alternating with buttermilk into the creamed blend.
6. Pour into cake pan.
7. Arrange pear slices on top.
8. Bake 20 to 25 minutes.
9. Cool in pan 10 minutes, then remove the sides of the sringform and move to a wire rack to cool completely.