Great question — answering as the UphillTech team:
That should be fine ( https://www.abf.gov.au/entering-and-leaving-australia/can-you-bring-it-in/categories/food ) However, you will never know for sure until you actually get there. Australia is very careful and the final decision lies with the customs officers. There is a small chance that it will get rejected. You really SHOULD declare it on your arrival form: the officer will likely ask you a few questions about it. Generally this will be a quick and courteous conversation, so there is nothing to worry about. Over-declaring is perfectly fine and strongly encouraged. Under-declaring is NOT a good idea. One minor nitpick. I would NOT call it "sweetbread" or "sweetbreads," as these terms...
Full answer by Hilmar: https://travel.stackexchange.com/a/189525 (CC BY-SA 4.0).
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