Blueberry Upside Down Cake

Preheat oven to 350 F. Place the first amount of butter in a 9×13 pan and put the pan in the oven until butter is melted. When melted remove it from the oven and sprinkle the brown sugar on top. Pat it evenly into the pan to create a crust. Sprinkle berries in one layer over the butter/sugar. Set aside.

In a mixing bowl, cream together the second amount of butter and the sugar until light and fluffy. Add eggs and mix to combine. Then mix in the sour cream and vanilla. Batter should be smooth.

Combine the dry ingredients (flour through salt) in a smaller bowl then stir it into the batter. Spread over the blueberries and bake for 35-40 minutes. Increase baking time if using frozen blueberries.