How can I cook a perfect deep-fried Mars bar?
The trick is to chill the Mars bar in a fridge for a few hours before cooking. 

Prepare a batter mix (the kind you deep fry fish in) and get your oil heated to temperature. Here's a batter recipe I've used before:


  Basic Fish Batter (Delia Smith Online)


(You can't fault Delia!)

You can use sparkling water to introduce more bubbles into the batter which gives it a nice texture.

Remove the Mars Bar from the fridge and immediately coat in the batter and cook in the oil right away. Cook until the batter is golden and serve with a scoop of ice-cream.

You can also do this with Snickers bars. It's also worth trying with miniature Mars and Snickers bars.

As a Scotsman I must apologise for inflicting this culinary delight on the rest of the world :)