Open a can of sweetened condensed milk.
Pour it in a pan.
Add low-fat milk.
Also add a cinnamon stick.
I accidently poured in the coffee at this stage too but wait to do that until the milk is heated.
Heat it up. Remember that mine looks darker because I already added the coffee.
Add the coffee. Stir.
Pour into a jug. Let it sit and cool 30 min. before putting it in the fridge. Now it needs to be kept in the fridge for at least 2 hours. If your freezer is big enough you can of course put it there.
When cold, add ice cubes to a glass.
Pour in the ice coffee.
I added more milk since I thought it was a bit too sweet for my taste. The supplies list is updated accordingly.