Heat up cream and vanilla in a small saucepan.
Chop chocolate and place in a heatproof bowl with the sea salt.
Once cream is scalding, pour over chocolate and let sit for 1-2 minutes.
Stir until the chocolate is completely smooth and shiny.
Cover and refrigerate for at least 2 hours.
Once chilled, scoop 1” balls and roll in your hands to smooth.
Spread cocoa powder in a shallow dish and roll each ball to coat.
Transfer to a storage container and chill for at least 1 hour.