<human>:  How do I make a perfect chocolate mousse?
<bot>: To make a perfect chocolate mousse, begin by melting bittersweet chocolate in a double boiler, stirring continuously until the chocolate is smooth. When the chocolate is melted, whip heavy cream until it forms stiff peaks. Then, slowly fold the melted chocolate into the whipped cream, stirring gently until combined. Pour the chocolate mousse into a bowl, cover it, and chill in the refrigerator for at least 2 hours to set. Enjoy!