Grease the cake tin with butter and line it with parchment paper or cling film
Melt the chocolate in microwave or double broiler method and keep it aside.
Crush the biscuits in a bowl. You can use any type of biscuits.
Add chopped nuts of your choice
Add butter to it.
Then add condensed milk to it.
Mix everything together to form sticky mixture.
Transfer the mixture to cake tin.
Press it nicely and spread uniformly
Spread the layer of chocolate on top of it.
Garnish with tutti frutti, walnuts, cashews, badam, pista, flax seeds or anything of your choice.
Allow it to set in fridge for 4-5 hours or overnight.
Carefully mould from the tin.
Slice and enjoy the Cake.