I once made millionaire shortbread using using Mary Berry’s recipe.
http://uktv.co.uk/food/recipe/aid/516853
I was pretty happy with the result, It tasted nice and was set nicely. Have a look here.
http://www.facebook.com/photo.php?fbid=365111056912837&set=a.365111050246171.87168.318899878200622&type=3&theater