* I usually cube cold butter, then allow it to come to room temperature in about 30 minutes.
** To be honest, I usually store frosted cupcakes at room temperature in an airtight container, but I'm not sure whether this is really safe, because there's dairy in the buttercream. Therefore, I advise you to store them in the fridge.
To make absolutley delicious double chocolate cupcakes, pair this buttercream with my easy and delicious
Dark Chocolate Cupcakes, also known as 'The Best Chocolate Cupcakes in the World'!