Crush the malt biscuits until they are finely ground.

Heat the condensed milk carefully in a saucepan over low heat or in the microwave until warm and easily mixed.

Cut the marshmallows in half or smaller pieces.

In a large bowl, combine the crushed biscuits, heated condensed milk, and halved marshmallows.

Mix all ingredients together thoroughly until well combined.

Place the mixture onto a sheet of parchment paper or plastic wrap.

Shape the mixture into a log approximately 2-3 inches in diameter.

Roll the log in shredded coconut, ensuring the entire outside is completely covered.

Wrap the coconut-covered log tightly in parchment paper or plastic wrap.

Chill the wrapped log in the refrigerator for at least 2 hours or until firm and set.

Once the log is set, slice it into desired thickness.

Serve chilled and enjoy.