Preheat the Oven to 350 degrees Fahrenheit
Place parchment paper in a 6 inch round pan and grease with cooking spray; remove the excess spray
Take 20 oreo biscuits in a mixie jar and grind them into a fine powder
Transfer the ground oreo biscuit powder into a mixing bowl and add baking powder; mix well
Next, add vanilla extract and milk; fold and mix
Gently add the batter into the baking pan and tap the pan to remove air bubbles
Bake for 30-40 minutes or until a toothpick inserted comes out clean
Cool the cake for 10-15 minutes
Carefully flip the cake and cool it completely
In a wide bowl take 1/2 cup of whipping cream
Use an electric mixer and beat for 3-4 minutes on medium speed until you see soft white peaks
Add pudding mix, vanilla extract, and powdered sugar and mix everything well
The frosting is ready. refrigerate till you use
After the cake is completely cool; add chocolate syrup and spread. let it gets absorbed
Pipe the frosting according to your preference. I topped the cake with oreo pieces and added oreo crumbs around the cake