Break up the chocolate into pieces and put in a microwave-safe bowl. Zap it for about 2 minutes before giving it a stir. Repeat until all the chocolate has melted.

Add the rice cereal and mix it up until coated in chocolate. Throw in the marshmallows and stir them in. Grab a dish/tray/container, scoop in the mixture and use a spoon to spread it out.

Get the tray into the fridge and leave it to chill. Cut into squares and tuck in!