Crush oatmeal biscuits by hand and combine two parts biscuit to one part butter.
Add sugar to taste.
Fruit Filling
Into a small saucepan combine pear and plum pieces with sugar and a cinnamon quill, and leave to cook on a medium heat for 10 minutes or until the mixture reaches a syrup consistency.
Into a small mould place several spoonfuls of the fruit mixture and liberally top with the crumble crust.
Place into a 220º Celsius pre-heated oven for 20 to 25 minutes or until golden brown.
To Serve
Dust with icing sugar and serve with cream or ice cream.
I have made this when Plums were in season. So simple & absolutely scrumptious!!