I know you can buy it but in case there are a few of these in your cupboard and you didn't know this trick, you should try it out.
Unopened can of condensed milk
+ 8 hours on low (completely submerged in water) in the crock pot
+ cool down in the fridge
This is the best caramel I've ever had, let alone made!
It's so easy!
Need to try this!