1/2 cup softened butter
1- 8 ounce package cream cheese, softened
2 teaspoons vanilla
4 to 4 3/4 cups powdered sugar
pinch of salt
Using an electric mixer combine the butter, cream cheese and vanilla until blended. Gradually add the powdered sugar and salt until it is the right consistency. Be careful not to over mix. I have had my cream cheese frosting separate before.
You can make lemon cream cheese frosting by substituting lemon juice for the vanilla and adding the zest of one lemon to the frosting. Or my new favorite is to add about 1/4 cup lemon curd instead of the vanilla.