In a bowl, beat the butter on medium speed until it becomes light and fluffy. This should take about 2 minutes.
Gradually add the powdered sugar, 1 cup at a time, beating constantly until all of the sugar has been added.
Add in the gold luster or shimmer or color and mix until fully incorporated.
Add in the pure vanilla extract and mix until fully incorporated.
Gradually add in the cream and mix until fully incorporated.
Finally, add a pinch of table salt to bring out the flavors, and mix until fully incorporated.
Once all ingredients are mixed together, your Gold Buttercream Frosting is ready to use!