In a medium bowl use a hand mixer to combine all the frosting ingredients until you have a frosting that is smooth, light, and soft peaks form. Be sure to add only 2 cups of powdered sugar at a time while mixing.
The thickness of the frosting should be lighter than a cream cheese frosting.
If you have any leftover frosting, just toss it into a Ziploc bag, label it, and pop it into your freezer until you need it.