Choco-Biscuit Fudge Cake

A week night chocolate craving brought about this choco-biscuit fudge cake. I vaguely remember a friend's mom used to make something called 'fridge cake' back in my school days - chocolate, biscuit bits and refrigeration is all that was required. This is something on those lines. Quick, super easy and instantly satiates the sweet craving, plus the family loved it.

You need:
2 packets Marie biscuits or any digestive biscuits
2 tbs cooking butter
250 grams cooking chocolate

Crush the biscuits to form a coarse powder in a mixer or simply break and crush with your fingers and set aside. In a microwave safe bowl, melt the cooking chocolate and butter  together until a smooth and creamy consistency is formed. Let it cool. Add the biscuit crumbs, mix and pour into a greased dish. Refrigerate for about 2 hours and then cut into squares.

So is this a fudge or cake? I am unable to decide....try making it and why don't you tell me?