Cranberry Upside Down Cake

Topping: Melt butter in medium saucepan. Add sugar, water, and cinnamon. Cook over medium-low heat until sugar dissolves, about three minutes. Stir in cranberries, make sure they are coated with sugar-butter mixture, then pour into pan and set aside. Cake: Sift together flour, baking soda, and salt. Set aside. Beat butter and sugars on medium speed until smooth and fluffy, about 1 minute. Add eggs, 1 at a time, mixing well after each addition. On low speed add half the flour mixture then mix to combine. Add sour cream and vanilla. Mix to combine. Add remaining flour mixture and mix until smooth. Spread batter evenly over the cranberries in the springform pan. Bake at 350 degrees until golden brown, edges begin to pull away from the side of the pan, and a toothpick inserted in the center comes out clean, about 45 to 50 minutes. Cool on rack for 10 minutes. Run knife around edge to loosen cake. Invert onto plate. Remove foil, springform ring, and bottom. Invert again onto serving plate. If any cranberries remain in the pan just put them back on top of the cake. Cut into wedges and serve. Note: The first time I pulled this out of the oven to test it I thought the cake was still very liquid. The second time I pulled it out to test and it still appeared to be just as liquid I realized that it was the cake moving on top of the layer of cranberries. The large amount of butter and shifting cranberries made an almost liquid layer on the bottom of the cake.