Step 1

With an electric mixer, cream butter together until light and fluffy, approximately 3-5 minutes.  Butter should become a very pale yellow color.

Step 2

Add powdered sugar, 1 cup at a time. After each cup, mix well until powdered sugar is fully incorporated. Continue until you have added four cups of powdered sugar.

Step 3

Add vanilla, salt and 1 tbsp of heavy cream, and mix until well combined. If a firmer frosting is desired, add more powdered sugar (1/4 cup at a time). Add more heavy cream (a tsp at a time) if a thinner frosting is preferred.

Step 4

Pipe or spread onto cakes, cupcakes, cookies or brownies