1 orange, zest only
250g/9oz plain flour
2 tsp baking powder
200g/7oz soft dark brown sugar
25g/1oz cocoa powder
700g/1lb 9oz dried fruit (a mixture of glac茅 cherries, raisins, prunes, finely chopped candied orange peel)
2 tsp mixed spice
pinch salt
200g/7oz butter, diced
3 large free-range eggs, beaten
200ml/7fl oz Irish stout (or porter)