In a large bowl, combine milk, sugar, and vanilla essence. Stir until sugar is fully dissolved.
Add room-temperature butter and mix until smooth and creamy.
If desired, add cocoa powder and mix thoroughly for a chocolate version.
In a suitable mold or pan, start assembling the cake:
Place a layer of biscuits at the bottom, covering the entire surface.
Pour a layer of the milk-butter mixture over the biscuits, ensuring they’re fully coated.
Repeat alternating layers of biscuits and mixture until all ingredients are used.
Finish with a layer of the creamy mixture on top and decorate with your favorite toppings (chocolate chips, nuts, fruit, etc.).
Cover with plastic wrap or a lid and refrigerate for at least 4 hours, preferably overnight, until the biscuits soften and the cake sets perfectly.
Serving and Storage Tips:
