Put 1 cup milk in ice tray. 2. Freeze until its hard. 3. Remove it from the tray. 4. Put milky ice cubes into the blender. 5. Put water (1/4 cup). 6. Grind till all ice cubes are crushed. 7. Put oreo biscuits (without cream). 7. Blend until biscuits are broken.8. serve it in a glass.
