Step 1

Combine all ingredients in stand mixer fitted with whisk attachment. Start on low to incorporate confectioners' sugar, then gradually increase to high.

Step 2

Whip on high speed for 5 minutes, until very pale and very fluffy. This long whipping time is critical for the frosting to be light, satiny, mousse-y and like the most delicious, beautiful-textured vanilla frosting ever.

Step 3

Pause several times to scrape down sides of mixer bowl while it is beating. The frosting will double in volume and will go from a dull, matte white to a shiny, satiny, fluffy white when it is ready.