1 ½poundssemisweet chocolatechopped melted and cooled
Instructions
Whisk together cocoa and warm water in a bowl until cocoa dissolves. With an electric mixer on medium speed, beat butter, confectioners sugar and salt until pale and fluffy, 3 to 5 minutes. Gradually beat in melted chocolate and then cocoa mixture until combined. Frosting can be refrigerated up to 5 days in an airtight container. Bring to room temperature and beat on low speed before using.
Notes
I found this frosting to be quite runny so I chilled it for 30-45 min until stiff enough to frost. There was about 2 cups leftover.