The best buttercream. ever. I keep losing the recipe (as simple as it is) so I'm posting it here so I don's lose it again.
1 c. butter, softened (if it's not soft, cut it up into smaller pieces. it blends fine)
8 c. powdered sugar
2 tsp. vanilla extract
1/2 c. milk
In a mixing bowl, cream butter. Beat in sugar and vanilla. Add milk until frosting reaches desired consistency.