Chocolate Biscuit Squares

My grandsons popped in to see us yesterday with their Dad, and I wanted something for them to munch, as they're always hungry! I'd been looking through Mum's old recipe notebook and found this. It brought back lots of happy childhood memories - these were a staple for family picnics, carried carefully in their special tin. The boys enjoyed them too, and asked if I'd tell their Mum how to make them. Praise indeed!
Mum's recipe was in ounces, so I've converted it to metric.
It's a 'melt in the saucepan and add everything else' sort of recipe, quick and easy to do, and it doesn't need cooking.

175g plain chocolate [or milk if you prefer] broken into pieces
60g butter
250g digestive biscuits (crushed)
grated orange peel
125g sultanas
60g chopped glace cherries

Melt the butter in a saucepan over a low heat then add the chocolate. Stir in the crushed biscuits, chopped cherries, sultanas and grated orange peel and mix till everything is covered in chocolate. 
Pour the mixture into an oblong tin with a sheet of grease proof or parchment paper on the bottom and leave it in the fridge to set. Cut into squares.
They have a good chocolate flavour, a nice crunch and soft pieces of fruit. You could vary the dried fruit and use cranberries or chopped apricots. They were just as I remembered them, and are very moreish.