I know its too late now, but this is what my nan used to make us when we went to her house on school holidays when we were younger. And i still make this to this day and my daughter likes them too! But i also dont add the rum but you can add whatever liquer u like.
1 pack of crushed Marie biscuits
1 can of condensed milk
2-3 tbs of cocoa, (depending on how strong taste of chocolate you like)
Mix the cocoa into crushed biscuits, then add condensed milk until combined well. Now u can either add coconut into the mixture or roll it into little balls and roll to coat with coconut! Then place in fridge for maybe and hour.
I hope you enjoy then as much as we have!!
Kristie, mummy to Mikayla Skye (27/8/2003)