Preheat the oven to 170C/160c Fan (325F/350F)
Grease and line a 22 cm (9 in) cake tin with baking parchment.
110 grams raisins, 225 grams dates, 175 grams sultanas, 110 grams currants, 275 grams butter, 275 millilitres water, 440 grams can condensed milk
Put the raisins, dates, sultanas, and currants into a pan with the butter, water and, condensed milk.
Slowly bring to the boil, stir frequently to prevent the mixture from burning. Reduce the heat and simmer for 4 minutes
300 grams plain (all purpose) flour, 1 teaspoon bicarbonate of soda, 1 tablespoon marmalade
Mix together the flour, salt and bicarbonate of soda in a separate bowl then add the marmalade.
When the fruit and condensed milk mixture has cooled, fold in the flour with the marmalade.
Spoon the mixture into the prepared tin and smooth the top.
Cover the outside of the tin with a double layer of baking parchment or brown wrapping paper. This will ensure that the cake is baked in the middle without burning the outside. I also like to cover the top of the cake with a piece of baking parchment with a cross cut in the middle.
Bake the cake in the oven for 1 hours 10 minutes, or until the cake is springy to touch and a skewer inserted into the middle comes out clean
Leave the cake to cool for 10 minutes in the tin, then turn out onto a cooling rack.