1

Preheat oven to 350 degrees F.

2

In a large mixing bowl, cream butter and 2 cups of sugar until light and fluffy. Add vanilla. Add eggs, one at a time, beating well after each addition.

3

In separate bowl, combine flour, baking powder, salt and baking soda. Add alternately to butter mixture with sour cream. Mix until batter is smooth.

4

Spoon 1/3 of batter into a greased 10" tube pan.

5

Combine topping ingredients in small bowl. Sprinkle 1/3 over the batter in the pan. Layer 1/3 more batter on top of cinnamon mixture. Continue layers, ending with cinnamon mixture on top.

6

Bake 60-70 minutes, or until cake tests done (toothpick inserted in the middle comes out clean). Cool for 10 minutes. Remove from pan to cool completely. Butter the top and let melt into the cake.