Heat heavy cream in a small pan over low heat, slowly bringing to a boil.
Meanwhile, place chocolate in a heat-proof bowl.
When cream is just about to come to a boil, remove from heat and slowly begin pouring over chocolate.
Gradually stir the cream into the chocolate and continue to stir until chocolate is completely melted.
Add vanilla and coffee into the chocolate mixture and let cool.
Refrigerate chocolate mixture for 2 hours.
Use small cookie scooper (or two spoons) to scoop round balls onto baking sheets lined with parchment paper.
Form into even balls using your hands. It doesn't need to be perfect!
Once truffles are formed, sprinkle lightly with sea salt.
Refrigerate 60 minutes or longer before serving.
Video
Notes
These chocolate truffles can be made with milk, semi-sweet or bittersweet chocolate. I prefer dark chocolate 70% or higher but use whatever chocolate you love the most!