In a microwave safe bowl, add chocolate and cream together. Microwave in 20 second intervals stirring after each one until chocolate is melted and mixture is cooled.
Transfer mixture to another bowl and place in the fridge for 1 hour or until the mixture can keep form when you scoop it with a spoon.
Add in vanilla and whip with a mixer for 4-5 minutes until light and fluffy. Taste the frosting and add in 1/2 cup powdered sugar if desired to help cut down on the richness of the frosting. Pipe into cupcakes and enjoy! Makes enough frosting to frost 24 cupcakes.