Preheat oven to 180C. Line an 20cm square baking pan with a parchment paper making sure that the paper hangs over the sides so that you can lift it later. Grease it with 2 tablespoon oil.
Mix crushed biscuits with melted butter. Place this on the baking tray and press it well onto the base of the pan.
In a food processor, add cheese, thick cream, condensed milk and powdered pistachios. Blend well till smooth.
Pour this over the biscuit base and bake in the preheated oven for 15-20 minutes until it gets firm. Take it out of the oven.
Melt the milk chocolate in 10 second bursts in a microwave oven stirring after each 10 seconds till the chocolate gets completely melted. Pour vegetable oil on it and mix.
Pour the melted chocolate over the pistachio cream layer. Spread evenly. Sprinkle sliced pistachios on top and serve.
