Lightly grease a 22cm (81/2 inch) square tin with a little butter or sunflower oil. Measure out the cereal in a large bowl. Using a pair of scissors, chop the dried fruit into bite size chunks and add to the cereal. Mix through.
In a large saucepan melt the butter. Add a pinch of salt, then add the marshmallows and melt over low heat. When melted add the vanilla extract and mix through. Pour this mixture over the cereal and dried fruit and mix together. Pour this into the prepared tin and press down firmly with a wooden spoon to make sure the mixture is even. Refrigerate for a few hours before cutting into squares.
Feel free to add nuts and seeds if you feel you want an even healthier bar.