"If you've offered to bake a treat for a stall or your local coffee morning then this cake stall classic is just the thing..."
INGREDIENTS
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250g pack butter, softened
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250g light soft brown sugar plus 2-3 tbsp
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300g self-raising flour
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4 eggs, beaten
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50g walnuts, toasted and finely chopped (a food processor is easiest), optional
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200ml very strong coffee (made fresh or with instant), cooled
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500g tub mascarpone
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2 tbsp light soft brown sugar
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cocoa powder or drinking chocolate to decorate