Using Breville Espresso Machine extract 2 shots of espresso
In a heavy saucepan, add cream, espresso, brown sugar, cocoa powder, and salt.
Over medium heat, bring to a slow boil, stirring constantly until sugar dissolves. Let boil, stirring periodically, for five minutes.
Remove from the heat. Add half the chocolate, and stir until melted. Add the remaining chocolate and stir again.
Cut butter into chunks and add to sauce, stirring until incorporated. Add vanilla and stir again.
Serve immediately, or pour into a clean glass jar. Let cool completely before covering, then store tightly sealed in the fridge for up to two weeks.
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.