Aunt Jewel's coffe cake

This coffe cake is fantastic and very easy to make. 1/2 cup softened margerine, 1 Cup sugar, 2 eggs, 1 cup sour cream, 2tsp. vanilla, 2 cups flour, 1 tsp. soda, 1tsp. baking powder. Beat margine and sugar till fluffy. Beat in eggs ,sour cream and vanilla. Stir in the flour,soda and baking powder. Spoon part of mixure in a 9-inch pan and sprinkle with 1/2 cup sugar and a tsp of cinamon. Pour the rest of the batter over this and sprinkle another sugar and cinamon mixure over the top. Bake for 35 to 45 min. in a 350 oven. Enjoy