1 box yellow cake mix
1 (8 oz.) pkg. sour cream
2 tbsp. cinnamon
2 tbsp. sugar

Mix cake by directions on box, then add sour cream. Mix together cinnamon and sugar. Pour half of cake batter into Bundt cake pan. Sprinkle cinnamon mix over batter. Then pour rest of cake batter into pan.

Bake at 350°F until done.

Icing:

1/2 c. powdered sugar
2 tbsp. melted butter
1 tbsp. evaporated milk

Mix well, then dribble over cake when cool.