In a large mixing bowl, beat the softened butter with an electric mixer on medium speed until light and fluffy, about 2–3 minutes.
Add the vanilla extract and mix until fully incorporated.
Gradually add the powdered sugar, about ½ cup at a time, mixing on low speed at first to prevent a sugar cloud. Once incorporated, increase to medium speed and continue until smooth and well combined.
Pour in the heavy whipping cream and beat on medium-high speed for 2–3 minutes, or until the frosting is creamy, light, and fluffy.
Use immediately to frost cakes, cupcakes, cookies, or other desserts. Store any leftovers in an airtight container in the refrigerator. Rewhip before using if chilled.
Enjoy!