Line a 9x9 inch pan with foil and grease with cooking spray.
Melt the white chocolate chips in the microwave.
Add peppermint frosting and finely crushed Oreos. Mix together.
Spread into the prepared pan.
Top with roughly chopped Oreo and gently press them into the fudge.
Place in the fridge to cool and set.
Lift fudge from pan until the foil. Gently peel the foil from the fudge and cut into squares.