Elvis Presley Sheet Cake

Cream the softened butter and cream cheese in a separate dish by beating the ingredients together until they are completely combined.
Add the Sugar: While mixing the cream cheese mixture, gradually add the confectioner’s sugar until frothy and thoroughly blended. Add the vanilla extract and mix well if you like.
Once the cake has cooled completely, frost it with a uniform layer of frosting. Chopped pecans, if desired, may be sprinkled on top.
Before serving, cut the cake into squares. Put any excess food in the fridge for later use.