Place all the ingredients in a large mixing bowl.Mix together using a stick blender with the blade attachment until smooth.Pour into a lined square 8 inch/ 20cm dish.Gently drop the frozen blueberries evenly throughout the cheesecake mixture.
They will sink to the bottom as it cooks.Bake at 160C/320F for 20-30 minutes until cooked in the centre.Allow to cool then cut into 9 squares.
Serve each square upside down.