Break up chocolate and put in slow cooker empty tin of sweetened condensed milk into slow cooker and put margarine or butter in and turn on low stirring every 15mins cook for approx 2 hours or until smooth and thick
If unsure if done get a glass of cold water and drip a little into the water if it stays in shape it's done then turn off heat and add already chopped fruit sticks to mixture
Stir to combine and then turn out into lined slice tray, put in fridge to set then once set turn out and cut to bite sized pieces