Pre-Heat the oven to Gas 4 / 180C

Grease a 2lb / 900g loaf tin

Sprinkle the base of the greased loaf tin with the Demerara Sugar

Thinly slice one of the oranges - and place along the bottom of the loaf tin - slightly overlapping (see picture) - you probably won't need all the orange

Cream your butter and sugar until light and fluffy

Add one egg at a time beating well, don't worry if it curdles a little just keep mixing and add a tablespoon of the flour.

Squeeze the remaining bit of orange juice into your cake mix and add your zest

Then add the baking powder and flour, mix well Finally stir in the marmalade - mix through

Pop mix into tin, smooth top and bake on the middle shelf for approx. 40 minutes or until an inserted skewer comes out clean  - watch the top make sure it doesn't burn - if it browns too quickly pop a piece of foil loosely over then top

Whilst it bakes, make the syrup by pouring the orange juice and caster sugar into a pan and heat stirring until the sugar is dissolved - set aside

Remove from oven and leave in the tin to cool slightly (10 minutes)

Very carefully tip out onto a wire tray Leave to cool for a further 10 minutes

Skewer the cake and drizzle the orange / sugar syrup over the top

Then enjoy warm with custard, cream or ice-cream or cold with a cuppa!