Peanut Caramel Squares

Ingredients: 1. Base: 125gm (about 4 oz) of butter 1/2 cup of sugar 1 egg yolk 1/4 cup of self-raising flour 1 cup of plain flour 2 tablespoons of custard powder 1/4 teaspoon of salt 2. Topping: 1/2 cup brown sugar, lightly packed 1 tablespoon of Golden Syrup 90gm (about 3 oz) of butter 125gm (4 oz) of roasted, unsalted peanuts - roughly chopped Method: Base: Cream the butter and sugar together until the mix is light and creamy, then add the egg yolk to the mix and beat well Fold in sifted flours, custard powder and salt and mix to a firm dough.  Press mixture into the base of a greased 28cm x 18cm (11" x 7") lamington tin. Bake in a moderate oven for 15 minutes or until golden brown. Remove from the oven, spread with prepared topping mixture (below), then return to a moderate oven for a further 5 minutes. Allow the slices to cool in the baking tin, then cut into squares and remove. Topping: Place the brown sugar, Golden Syrup and butter into a small saucepan, then stir over low heat until the butter is melted and the sugar is dissolved. Simmer the mixture gently for 5 minutes, then stir in the peanuts.