1: Melt white chocolate chips in a bowl until smooth.
2: Stir in 1/2 cup of heavy cream until well combined.
3: Fold in the Baileys Vanilla Mint Shake liqueur.
4: In a separate bowl, whip 1 cup of heavy cream until soft peaks form.
5: Gently fold the whipped cream into the chocolate mixture.
6: Add green food coloring and mix until desired color is achieved.
7: Spoon the mousse into serving glasses and refrigerate for at least 2 hours.
8: Before serving, top with chopped chocolate and extra whipped cream.