Base:
125g butter, melted. 1 packet wine biscuits, crushed. 1 cup sultanas. 1 can condensed milk, less one dessertspoon.
Topping:
90g butter. 2 Tbsp brown sugar. 1 Tbsp milk. 1 dessertspoon golden syrup. 1 dessertspoon condensed milk. 1 1 /2 cups icing sugar.
Mix all the ingredients for the base together. Spread in a prepared slice pan and bake at 180degC for 20 minutes.
Allow to cool.
Put the topping ingredients, except the icing sugar in a pot and boil for two minutes. Stir in the icing sugar.
Spread over the cooled base.