Melt the chocolate with the butter in a double boiler or microwave
Crush the biscuits by hand but don’t over crush, you want some big pieces in there
Mix in the condensed milk with the biscuits and let them soak up
Once chocolate melts pour it over the biscuits
Mix them all with a spatula making sure everything is evenly coated
Place mixture on wax paper and roll into the shape of a log. Freeze for 2 hours
Chop it up and keep refrigerated