In a pan add 1 cup water.
Now add cocoa powder and sugar and boil it.
Now add drinking chocolate and boiled it.
In a bowl add 2 tbsp water and corn flour mix well.
Now add corn flour mixture into sauce and boiled it.
Our chocolate sauce turns thick consistency.
Now spread chocolate sauce on biscuit one by one and make a tower.
Now wrap the biscuits tower in fresh wrap.
Keep it freezer for an hour.
After 2 hours remove from freezer and cut the pieces in slanting shapes.
Our choco-pie is ready to serve.
Enjoy it.