Combine condensed milk, crushed Marie biscuits, chopped marshmallows, chopped dried apricots, and chopped walnuts in a large bowl.

Gradually add coconut, mixing until the mixture is moist and sticky enough to roll.

Take a handful of the mixture and shape it into a short, fat log.

Roll the log in extra coconut to coat.

Place the coconut-covered log on greaseproof paper.

Press down firmly and roll the log to refine its shape.

Twist the ends of the greaseproof paper to secure the log.

Place the wrapped logs in the freezer for at least an hour.

Remove from the freezer about an hour before serving.

Chop the logs into bite-sized pieces and enjoy.