50g/2oz plain flour
1 level tsp baking powder
25g/1oz Brazil nuts
25g/1oz hazelnuts
25g/1oz macadamia nuts
25g/1oz pecan nuts
ΒΌ level teaspoon salt
225g/8oz granulated sugar
50g/2oz dark chocolate (75 per cent cocoa solids)
110g/4oz butter
2 eggs, beaten