Line a 20cm square cake tin with baking paper – it’s important to make sure that you leave plenty of paper hanging over the sides to help you remove the chocolate fudge once it has set.
Pour the condensed milk into a medium saucepan over low heat and add the milk chocolate – which has been broken into squares.
Stir regularly until the chocolate has melted and the ingredients have combined - around 8 - 10 minutes.
Remove the saucepan from the heat and pour the fudge into the prepared tin and place in the fridge for a minimum of 6 hours (preferably overnight) to set.
Remove the set fudge from the fridge and cut into squares.