11.   Add dry ingredients to butter mixture.

12.   Add flour mixture to butter mixture and stir until thoroughly combined.

13.   Add to butter mixture in several additions, mixing well after each addition.

14.   Add milk, vanilla and egg to butter mixture and beat until fluffy.

15.   Add to butter mixture and beat on low speed until combined.

16.   Add to butter mixture and stir until combined.

17.   Add to butter mixture slowly.

18.   Add to butter mixture.

19.   Gradually add flour mixture to butter mixture.

20.   Gradually add egg mixture to butter mixture, beating well.