Preheat the oven to 180ºC/350F/Gas Mark 4

Lightly grease or line the base of an 18cm/7inch square cake tin with baking paper

In a saucepan, add the cubed butter and sugars. Heat gently and stir until the sugar has dissolved

Set aside and allow to cool

In a mixing bowl, combine the dried fruit, flour and eggs

Add the cooled butter & sugar mixture to the bowl and combine

Turn the mixture out into the cake tin, flattening it down & getting it into the corners with the back of a serving spoon or spatula

Put into the oven and bake for 25-30 minutes or until the top is lightly browned

Allow to cool in the tin then cut into squares or finger-shaped slices