I have tried before, but they always go rock solid and cant eat them...
though I have found somewhere and it said take it out the freezer 15-20mins before hand... though, then I gotta remember to do it!! He-he!
I have found a zero fat (they say) on-line but you can't mail order have to go the their shop! (in North Wales) I live in the south east! Never mind! I'll have to start experimenting!