Grease a 14 cm x 21 cm loaf pan; line base and two long opposite sides with baking paper, extending paper 5cm above edge of pan.
Combine sifted flour, soda and nutmeg in a large bowl; stir in dates, walnuts and brown sugar. Make a well in the center, add juice, butter, eggs and bananas; mix with a wooden spoon until smooth. Pour mixture into prepared pan.
Cook the loaf in a moderate oven, 180º C, for about 1 hour, or until cooked when tested. Place a sheet of Al Foil over the cake half way through the cooking process. This will keep the loaf from burning. Stand cake in pan for 5 minutes; turn out onto a wire rack to cool. I put some AL foil over the top half way through to stop any burning.
Serve warm or cold; spread with butter.
This is nice served with cream cheese icing and perhaps walnuts on the top.
Link to flour-less orange cake and cream cheese icing.