(from here - I recommend watching the whole video! It's big fun!)
50g mars bars
70g corn flakes
(I doubled the amount)
Prepare enough mini-muffin paper cases. To be honest, I didn't count them, but you'll end up with enough to feed a bunch of people.
In a medium saucepan, slowly melt butter and mars bars. Do this on a low heat. Be patient - it'll take a moment. Then, stir in the corn flakes and mix well until they are covered with the butter-chocolate mix.
Then, transfer spoonfuls into the mini-muffin cases. Let cool in the fridge for at least an hour or so.