200g/7oz whole blanched hazelnuts

200g/7oz butter, cubed

200g/7oz dark chocolate, broken into squares

6 large eggs, separated

200g/7oz sugar

3 T. orange juice

Preheat the oven to 350 deg F. Grease a 9 in. springform cake tin and line the base with baking parchment.

Place the hazelnuts in a food processor and blend them until they are fairly finely ground. If you blend the nuts to the consistency of fine breadcrumbs, they should work a treat, but leave a few coarser pieces to add texture.

book, p.