Use this chocolate cream-cheese recipe to decorate our Chocolate Marshmallow-Ghost Mini Cupcakes.
Melt chocolate in a heatproof bowl set over a pan of simmering water, stirring until smooth. Let stand until just warm, 10 to 15 minutes.
Put cream cheese and sugar into the bowl of an electric mixer fitted with the paddle attachment. Mix on medium-high speed until pale and fluffy, about 4 minutes. Reduce speed to low. Mix in melted chocolate until combined. Use immediately.