01 - Place the finely chopped chocolate into a heatproof bowl.
02 - Warm the heavy cream in a small saucepan over medium heat until it just begins to simmer, avoiding boiling.
03 - Pour the hot cream over the chocolate and allow it to sit undisturbed for 2 to 3 minutes to soften.
04 - Gently whisk the mixture from the center outward until smooth and glossy.
05 - If desired, whisk in the unsalted butter, vanilla extract, and pinch of sea salt until fully blended.
06 - Use the ganache immediately as a glaze while warm, or let it cool to room temperature to thicken for spreading or truffle preparation.