Directions

1. Place the chocolate in the bowl of a stand mixer.
2. Heat the milk, espresso, and butter in a small pot until milk starts to boil, approximately 3 minutes.
3. Pour the milk mixture into the stand mixer and combine until chocolate has melted and the mixture is smooth.  
4. Add the eggs and continue to mix until no clumps remain. 
5. Pour into mugs and refrigerate until the mixture has set, approximately 1 and ½ hours. Garnish with chocolate shavings if desired and serve.