Chocolate crackles recipe have traditionally been printed on the side of the Rice Bubbles packets in Australia. Adults try to deny they like them, they are supposed to be for kids. I've never seen sultanas used in any recipes I've consumed. Sultanas are sorta like raisins, but have a different sweetness & taste.

Rice Bubbles are called Rice Krispies in North America, although some that Sorcha sent me were far less sweet.

Icing sugar is confectioner's sugar.

Copha, I have been informed, is utterly unavailable outside Australia, but I thought it was part of our British Heritage. It is a partially-solidified shortening made of coconut oil. You can't really substitute, it gives most of the slightly greasy, gritty taste. If you combine it with good cocoa, powdered sugar (and also for milk chocolate, dried milk powder) and lots of elbow grease, you have homemade bar style chocolate.


I will incorporate the recipe here for posterity's sake...

They are usually placed in the fridge, especially in Queensland, or else they will take ages to set, and also they taste much nicer chilled slightly. I have seen them made 'white' without cocoa, but you must cut back the sugar, the bitterness of the cocoa normally counteracts the sweetness.
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Recipe for "choc-crackles"

----

NAME
    CHOC-CRACKLES - A traditional Australian sweet snack
    Mention this recipe to an Australian abroad and he will
    instantly get homesick.

INGREDIENTS (serves 6)
    250 g    copha
    250 g    icing sugar
    25 g      cocoa
    100 g    Rice Bubbles
    75 g      sultanas (optional)

PROCEDURE
          (1) Combine sifted icing sugar, cocoa, rice bubbles,
               and optional sultanas.
          (2) Melt copha and add to ingredients   and   mix
               thoroughly.
          (3) Spoon into paper cups and allow to set.

NOTES
    Rice Bubbles are called Rice Krispies in North America.
    Icing sugar is confectioner's sugar. Sultanas are like
    raisins. Copha, it would appear, is utterly unavailable out-
    side Australia. It is a partially-solidified shortening made
    of coconut oil.

RATING
    Difficulty: easy if you can get the ingredients.   Time: 5
    minutes preparation, 1 hour cooling. Precision: approximate
    measurement OK.

CONTRIBUTOR
    Michael Gigante
    Royal Melbourne Institute of Technology, Melbourne Vic., Australia
    UUCP :...!seismo!munnari!cidam.oz!mg
    ARPA :mg%cidam.oz@seismo.css.gov
    CSNET:mg%cidam.oz@australia