Actually, this is Queen Elizabeth's cake, but it's a guest recipe from Annabel Luxford. I haven't made this myself, but I know this Aussie likes her sweets A LOT (as you can see), so I am sure it is worth a try.
Thank you for the recipe, Bella!
QUEEN ELIZABETH CAKE
-160g dates, chopped
-1/2 teaspoon bicarbonate soda
-125g unsalted butter, softened
-230g caster sugar
-1 teaspoon vanilla extract
-2 cups self raising flour
Pre heat the over to 180C. Line and lightly grease a 20cm cake tin.
Put the dates and bicarbonate soda in a bowl. Add 1 cup boiling water, stir to combine and set aside for 15 minutes, stirring often until the dates have softened and absorbed most of the water. Beat the butter and sugar with an electric beater until pale and creamy. Add the egg and vanilla and beat until well combined. Add half the flour and half of the date mixture and beat to combine, then add the remaining flour and date mixture. Spoon the mixture into the prepared tin, and bake for approx 40-50 minutes. Test if the cake is cooked by inserting a skewer into the centre. It is cooked if it comes out dry and clean. Remove cake from the over and leave in the tin while preparing the icing. Icing with desiccated coconut works well, as does cream cheese icing.