cinnamon surprise coffee cake

FILLING:
1 TBS cinnamon
4 TBS soft butter
1/3 c. brown sugar
2 TBS flour

mix together, set aside

CAKE:
3 c. flour
2 tsp baking powder
1/2 tsp baking soda
1/2 tsp salt
1/2 c. soft butter
1 1/2 c. sugar
3 eggs
2 tsp vanilla
2 c. sour cream

cream butter and sugar. add eggs and vanilla. combine dry ingredients (flour, baking powder, soda, salt) and add to butter mixture alternately with sour cream. pour half of dough mixture into a greased bundt pan. sprinkle filling mixture over dough and cover with remaining dough mixture. swirl with a knife and bake in a 350 degree oven for 60 minutes or until a knife comes out clean.