Preheat the oven to 350 degrees. Spray a 9 x 13 pan with cooking spray.

In a medium bowl combine the flour, baking powder, salt, cinnamon, and nutmeg. Mix well and set aside.

In a large bowl cream together the brown sugar and butter. Add in the eggs and mix well. Stir in the vanilla.

Add the flour mixture to the butter mixture and mix until blended.

Spread batter into the prepared pan.

In a small bowl combine sugar and cinnamon. Sprinkle over top of the bars. Bake for 25-30 minutes.

While still warm cut into squares.