Whip the butter

• Place the softened butter in the bowl of a stand mixer.
• Beat on medium-high speed until pale and fluffy.

Add the sugar

• Add the sifted powdered sugar gradually, a little at a time.
• Mix on low speed until fully incorporated, scraping down the bowl.

Loosen and flavor

• Pour in the heavy cream and vanilla extract.
• Add the salt.
• Beat until smooth, creamy and spreadable.