1/2 cup unsalted butter or margarine at room temperature
1 egg white
2 tablespoons whole milk
1/2 teaspoon vanilla extract
3 cups powdered sugar
1/2 cup unsalted butter or margarine at room temperature
1 egg white
2 tablespoons whole milk
1/2 teaspoon vanilla extract
3 cups powdered sugar
Mix all the ingredients and whip in an electric mixer on medium speed for 3 minutes
If necessary, add more powdered sugar to achieve a spreadable consistency.