1 1/2 cup confectioners' sugar
3 oz block cream cheese, at room temperature
2 oz unsweetened baking chocolate
2 tablespoons butter
In a small saucepan, melt butter and chocolate together, whisking occasionally. Pour into a medium sized mixing bowl and allow to cool. Add cream cheese and mix thoroughly together. Add sugar and mix until well blended and spreadable. Spread on cooled cake. For a real chocolate treat, spread on chocolate birthday cake.
This is a really quick, easy icing recipe. I used Hershey's baking chocolate and it came out great, velvety smooth, very chocolate-y and with just a hit of tang from the cream cheese.