Start with softened unsalted butter.

In a mixing bowl, beat the butter with an electric mixer on medium speed until creamy, about 1-2 minutes.

Gradually add in the powdered sugar, one cup at a time, mixing on low speed to prevent a sugar cloud.

Pour in the heavy cream and vanilla extract, then mix on medium speed until fluffy and smooth.

Adjust consistency by adding more cream if too thick or more powdered sugar if too thin.

Add a pinch of salt to balance sweetness and enhance flavor.

Beat the buttercream on high speed for an additional 1-2 minutes to make it extra fluffy.

Use a spatula or piping bag to decorate your cupcakes.