Finely chop the milk chocolate and place it in a bowl.
Heat the cream until hot but not boiling.
Stir the instant coffee into the hot cream until fully dissolved.
Pour the cream over the chocolate and let it sit for 1 minute.
Gently stir from the center outward until smooth and glossy.
Add Baileys and mix until fully incorporated.
For extra shine and silkiness, stir in the butter at the end.
