When my dentist was pregnant she craved sweet things and I made her a Mars Bar cake which she loved but banned me from making it unless she was pregnant. To say this is fattening is a bit of an under-statement.
You will need 3 Mars bars
150 g (1 1/2 stick) butter
150 g (6 cups) Rice Crispies or corn flakes if you cannot buy rice crispies.
250 g (9 oz) Cadbury’s milk chocolate.
Melt the three Mars bars with the butter either over heat or in a microwave then add the rice crispies and combine well. Spread the mixture into a shallow tin and refrigerate until set ( a few hours will suffice) Melt the chocolate and use it to cover the whole cake, cut into pieces whilst still warm and allow to cool before trying to eat it!