For the Cake:

Cup of Yum
1. Preheat oven to 350 degrees Fahrenheit.
2. Grease and flour 2, 9" round cake pans and set aside.
3. Add butter, sugar and vanilla in a mixing bowl. Beat well until fluffy.
4. Add eggs and beat well, one at a time.
5. Add flour and milk, alternating until blended well.
6. Pour into prepared baking pans and bake for 30-35 minutes or until toothpick in the center comes out clean. Cool completely before frosting and serving.

For the Frosting:

1. Cream the butter in a large mixing bowl with a stand up mixer or hand held mixer.
2. Then beat in the powdered sugar (1 cup at a time) on low speed until well combined.
3. Then stir in the vanilla.  Then gradually add in the milk on medium high speed until the icing is the consistency that you prefer.

To Assemble: 

1. Cut the round portion of the cakes off the top of the cakes with a serrated knife to make the cakes level.
2. Put one of the cakes on a serving platter or cake stand.  Top the cake with the frosting.  
3. Then stack the other cake on top and top that layer with buttercream icing as well.
4. Frost the top of the cake and the sides of the cake with the remaining buttercream frosting (reserve some of the buttercream to decorate the top of the cake).
5. Use the remaining frosting to pipe some swirls on top of the cake and top with the sprinkles.  
6. Then the cake is ready to slice, serve and enjoy!