For the crust
Combine the biscuits and butter in a bowl and mix well to form a crumbly mixture.
Spread this mixture on the bottom of a 150 mm. (6") diameter loose-bottomed cake tin and press well to form even layer.
Refrigerate till set.
For the apple filling
Combine the biscuits and butter in a bowl and mix well.
Add the stewed apples, bread crumbs, sugar substitute, cinnamon powder and raisins and mix well.
For the topping
Combine the oats with the butter and mix well. Keep aside.
How to proceed
Spread the prepared apple filling onto the crust evenly.
Sprinkle the topping on it and place in a pre-heated oven at 150º C (300º F) for 20 minutes.
Remove, cut into 6 equal pieces and serve warm.