Upside Down Marmalade Pudding

1. Set the oven to 190/375F/gas mark 5.  Grease a 1 litre pie dish or pudding bowl.
2. Grate the zest from the orange and then use a sharp knife to remove the skin and all the pith. Catch the juice in a mixing bowl.  Thinly slice the orange into circles and arrange in a pattern on the bottom of the greased dish.
3. Put the marmalade and butter into a small pan with a tablespoon of water. Heat until bubbling.  Pour over the oranges.
4. Put the orange zest into the bowl with the juice.  Add the margarine, sugar, flour and eggs and beat until light and fluffy.
5. Carefully spread the mixture on top of the oranges smoothing the edges so that the marmalade does not rise up.  Bake for 20 – 30 minutes.  The top will be golden brown and feel ‘springy’ when cooked. 

To serve the pudding: carefully turn it upside down onto a plate.