We’d wanted to try it for ages so it made sense to make it one of our new things to do for the month of September.
We bought 2 bottles of Diet Coke (apparently it works better with Diet or Coke Zero) and a three-pack of Mentos, just in case we somehow royally messed up.
The idea is to break the pack in half and position it above the open bottle, with a piece of paper between.
You pull out the paper and run!
Here’s the Mentos and Coke video!