Chocolate truffle torte

The recipe for this cake came from James Martin's website. Unfortunately it's not there any more but as I had saved it as a Word document I can reproduce it here. It is essentially Delia's recipe with changes to the quantities.  I used Green and Black's 35% milk chocolate because my family prefer it. And the sugar mice were there because they were reduced to clear in Waitrose. I haven't had a sugar mouse for over 50 years!

James Martin chocolate truffle cake

25g/1oz butter, plus some for greasing,
100g/4oz amaretti biscuits,
400g/1lb dark chocolate (70-75% cocoa solids),
4 tbsp liquid glucose,
4 tbsp rum,
1 x 568ml tub double cream, at room temperature,
cocoa powder, to serve.

1.      Line a 23 cm cake tin with baking parchment, then grease the base and sides with soft butter. Melt the butter in a small pan. Crush the biscuits, mix together with the butter, then spread over the base of the tin.

2.    Break the chocolate into squares and put them in into a heatproof bowl, with the liquid glucose and rum. Place the bowl over a pan of barely simmering water, making sure the base of the bowl doesn't touch the water, then leave it until the chocolate has melted and become slightly smooth. Stir , then take off the heat and leave to cool slightly.

3.    In a separate bowl, beat the double cream until only slightly thickened. Fold half into the chocolate mixture, then fold that mixture into the rest of the cream. When blended and smooth, spoon it into the prepared tin. Tap the tin gently to even the mixture out, then cover with clingfilm and chill overnight.

Just before serving, run a warm knife round the edge to loosen the torte, then remove from the mould. To serve, dust the surface with sifted cocoa powder.