Mrs Saunders' Poo Cake - cooking recipe

Ingredients

12 ounces plain baking chocolate
4 ounces unsalted butter
405 g condensed milk
10 ounces rich tea biscuits, crushed
1 ounce raisins
3 walnuts, halved

Preparation

Melt 6oz of the chocolate and all of the butter in a saucepan with the condensed milk, being careful to ensure that the mixture does not get hot enough to boil.
Stir in the biscuits, raisins and walnuts.
Line a tin or platter with foil and use it as a base on which to form the mixture into a log shape.
Chill in the refrigerator for 1 hour.
Melt the remaining 6oz of chocolate and use to coat the cake. Refrigerate until hardened or until ready to eat.