Melt the chocolate first, by using a Bain Marie** be careful not to burn the chocolate, once 75% of the chocolate is melted, take it off the heat and mix it to fully melt everything.
In a large food processor add the butter, confectioners sugar, cocoa powder, and salt then pulse a few times, until everything is combined
Combine ingredients in food processor
Pulse the corn syrup and the vanilla until it is all combined.
Add corn syrup and vanilla flavor
Use a spatula to scrape the bowl and add the melted chocolate, then pulse again till smooth and combined.
Add melted chocolate
Spread or pipe frosting. Delicious on my coffee layer cake recipe!!