Preheat oven at 200xb0 C.

Crush the biscuits coarsely in food processor along with melted butter or ghee. Line this on the bottom and sides of a pie dish, pressing firmly with your fingers or the bottom of a cup / glass.

Place this in preheated oven and bake for 10 minutes at 200C. Remove and let cool till the filling is ready.

Heat one litre cow's milk till it comes to a boil - turn flame to sim. Add up to one tbsp vinegar or 1/2 cup curds to curdle the milk. Stir around until the separated water (whey) is clear and light green. Filter out the solids, pressing out as much liquid as you can. The filtered soild is the paneer to be used in the recipe. (this can be prepared in advance)

Next, puree the sliced apples and when its almost done, add the paneer, cinnamon and sugar to get a smooth puree of apple and paneer. Add sugar depending on sweetness of apples.

Turn this puree into the baked crust, smoothen out and bake for 45 minutes or so at 180xb0 C - until top is golden and the cake is nearly firm.

Cool in the refrigerator for a few hours and serve as it is or with some vanilla ice cream.