Cadbury's Ice Breaker I had the same revelation too! It lacks the mix of dark and milk chocolate, but is very close! Now I need to find an adequate Rowntree Nutty bar facimili!
Cadbury's Ice Breaker I have just discovered Cadbury Mint Crisp, in the Irish section of Asda, who knew?! Very similar to the infamous Ice Breaker (Heart Breaker, when it disappeared!). As far as I can tell, the difference is that Ice Breakers had a mix of dark and milk chocolate, Mint Crisp are just milk chocolate, but not too sweet. Also discovered a low sugar Dairy milk. Now to track down the Rowntree Nutty Bar!!! Last bit of good news, this year Cadbury are bringing back the Old Jamaica chocolate bar, OMGF