In a heatproof bowl, add the chocolate chips and heavy cream. Place the bowl over a pot of simmering water. Stir the mixture until the chocolate is melted and the mixture is smooth.
Remove the bowl from the heat and let it cool slightly. Add the confectioners' sugar, vanilla extract, and salt. Stir until combined.
Pour the mixture into individual serving dishes or one large bowl. Refrigerate for at least 4 hours or overnight. Serve chilled.
Interesting Facts
Chocolate mousse was created in France in the 18th century.
It is traditionally made with heavy cream, which makes it rich and creamy.
Chocolate mousse can be served plain or topped with fresh fruit or whipped cream.