"This tiramisu cake recipe is featured as the technical challenge in the Desserts episode of The Great British Baking Show...."
INGREDIENTS
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For the sponge:
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a little softened butter, for greasing
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4 large free-range eggs
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100g (3½ oz) caster sugar
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100g (3½ oz) self-raising flour
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For the filling:
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1 tbsp instant coffee granules
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150ml (5½ fl oz) boiling water
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100ml (3½ fl oz) brandy
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3 x 250g (9 oz) tubs full-fat mascarpone cheese
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300ml (10½ fl oz) double cream
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3 tbsp icing sugar, sifted
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65g (2¼ oz) dark chocolate (36% cocoa solids), grated
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For the decoration:
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100g (3½ oz) dark chocolate, (70% cocoa solids), finely chopped
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2 tbsp cocoa powder