I have posted this in response to a request, but have not tried it. This recipe will frost, but not fill, a 2-layer 8 inch cake. Increase accordingly if you wish to fill the cake.
- Beat butter in a large bowl with mixer on high speed until creamy.
- Beat in marshmallow creme.
- Reduce speed to low, and beat in confectioners' sugar and vanilla.
- Increase speed to high; beat until fluffy.