Take 2 packets of Oreo biscuits with white colour cream inside it. Open packet, separate white cream part of all biscuits, keep aside.

Now roughly make pieces of chocolate biscuits, put in mixie jar, grind it, make fine powder..

Side by taking a Kadai, add salt in it, cover a lid, turn on the gas on low medium flame to heat like preheat to bake a cake. Put a stand to keep cake tin. Take a 6" small cake tin, apply oil, put a butter paper cut in tin size, put in it, apply oil over it, keep ready.

Now transfer cake mixture in a bowl, add, baking powder, milk, oil, powder sugar, mix well, make sure, no lumps and it should be semi-thick pouring consistency. Transfer cake batter in the tin, open lid of Kadai, put tin in Kadai, cover it again, bake it for at least 30 to 40 minutes on low flame. Then you can check by pricking a toothpick, if it comes out clean, the cake is ready.

Take out from kadai, keep to cool it completely.

Now take white cream, add 2 tsp milk or as needed to make paste. Take out cake from tin, apply cream milk paste on it, sprinkle colourful gems and round side of cake apply a little bit cream stick half parts of chocolate biscuits, in a proper distances.. Your biscuit cake is ready.. Ready to cut and enjoy with smile..