Base - crush oreo biscuits, place in a bowl and add melted butter. Mix together. Press into a tin/dish. Place in the fridge while preparing layer 1.
Layer 1 - Add all ingredients into a bowl. beat till thickened. Spread over the base and place back into the fridge while preparing Layer 2.
Layer 2 - In a cup follow the directions of making gelatine(should be on the box) leave to cool down. Beat cream cheese and condensed milk together. Add 2-3 T of gelatine(Make sure its not to hot) and mix with cream cheese and condensed milk. Spread over Layer 1.
For the final touch evenly place milk chocolate drops over the top to give that chocolate hershey look.