Line a baking tray (or plate) with baking paper and set aside until needed.
Using a food processor, blend until the Tim Tams are crumbs.
Add the softened cream cheese and blend until combined.
Place the mixture into the fridge for a minimum of 30 minutes to chill
Roll the mixture into balls (I made mine dessert spoon sized) and place on tray. Continue until all the mixture has been used.
Place tray/plate into the freezer for a minimum of half an hour, you want the ball to be very firm.
Break the milk chocolate into pieces and place in a microwave safe bowl to melt (you can also melt the chocolate in a bowl sitting above a saucepan on boiling water on the stove). I cook the chocolate for 30 second spurts until it's almost melted and then mix until it's completely melted.
Remove the balls from the freezer. Poke a skewer into the bottom of the balls and dip them in the melted chocolate. Place on a wire rack to set. Repeat until all the balls are coated.
Optional - decorate the balls while the chocolate is still soft with sprinkles, hundreds and thousands or even melted white chocolate.
Put the balls into the fridge for half an hour, or until the milk chocolate has set.