Melanies Buttercream

1 lb 6 oz unsalted butter, softened
1 lb 11 1/2 oz. confectioners sugar
1/2 cup whole milk
3/4 tsp pure vanilla extract

• Allow the abutter to come to room temperature
• using a paddle attachment, mix the butter on low speed for one minute
• With the mixer running on low speed, begin adding the sugar
• Once 2/3 of the sugar is in add the milk and vanilla
• promptly add the remaining sugar
• stop mixing when the ingredients are roughly blended. The frosting may be very lumpy and broken looking at this stage.
• using a rubber spatula, transfer half of the frosting into a food processor fitted with a standard chopping blade, process the buttercream for 3 minutes, or until perfectly smooth
• scrape the sides of the bowl down and process for 30 sec. more.
• Store buttercream in a sealed container or a  bowl covered in plastic wrap. Best held at room temperature in a cool place. Can last for 10 days or more at room temp.