Grease a 2 quart glass pan. Peel your pears and cut into slices and layer into the bottom of the pan.
Sprinkle the brown sugar and 2 tsp cinnamon over top of the pears.
Sift together flour, baking powder, salt and cinnamon. Set aside.
In a separate bowl, cream butter and sugar in a mixing bowl. Add eggs, one at a time, beating well after each one.
Add the flour mixture alternately with the sour cream, starting and ending with the flour.
Bake in a preheated 350 degree oven for 25 - 30 minutes or until the top is golden brown.
Eat it warm with ice cream or vanilla bean whipped cream or let it cool to room temperature.