Marshmallows: use a knife and chopping board to slice each of the marshmallows in halves.
Combine: then place the marshmallow halves into a large mixing bowl and add the crushed nuts and coconut.
Chocolate: add the milk chocolate melts to a heatproof microwave jug and heat on high for 1 minute increments (3 minutes total) using a chop stick to stir the chocolate after each 1 minute period. Note 3
Chocolate and fillings: pour the melted chocolate into the bowl with the marshmallows, coconut and nuts. Stir to combine until the ingredients are consistently mixed together.
Cake tin: use a spatula to transfer the wet rocky road into the prepared cake tin. Ensure that the mixture is pushed into each of the corners and even across the top (not flat but evenly distributed).
Refrigerate: place the wet rocky road into the fridge and leave for at least 1 hour to set.
To serve: once the rocky road has set, remove it from the fridge and place the tin onto a chopping board. Grab the paper at either side of the tin and lift the rocky road up and out. Then pull the paper off and discard. Use a knife to cut the rocky road into pieces.
Notes
Note 1 - Marshmallows: use a knife and cutting board to slice these in halves. Aussies, this is 1 x 280 gram packet of marshmallows and we use them all. Non Aussies, this amount of marshmallows measures approximately 3 cups. If you are not in a marshmallow chopping mood you can use mini marshmallows instead. If you are in a marshmallow chopping mood, you will find it quickest to cut 4-5 marshmallows along the knife edge at the same time. Then you will find it easiest if the knife gets too sticky to use a wet chux and clean it in every so often. Just be super careful near the sharp blade with your hands 😉👌.
Note 2 - Milk chocolate: I always recommend using cooking chocolate, not confectionery chocolate for baking. You can use white chocolate or dark chocolate if you prefer. This amount ie 4 cups is 2 x 280 gram bags of milk chocolate melts.
Note 3 - Chocolate: the total time it will take for the chocolate to melt is 3 minutes in the microwave on high. However, we want to break this into 1 minute increments and stir the chocolate with a chopstick after each 1 minute period to make sure that we don't overcook it. When the total cook time is up, give it a bit more of a vigorous stir to ensure that all of the individual melts have melted and been consistently mixed in with the other chocolate.