Oh yes, definitely not wood. Freaking nightmare with wooden items..... Australia is VERY strict.
Same goes for anything plant based (eg lavender flowers).
"While all other foods, including dairy products, cakes, honey and seafood, are subject to inspection, commodities like rice, pulses and crop seeds are generally restricted from entering the country for private use.
"These are all the things Australia is really good at growing, and we export them to the rest of the world."
Unless accompanied by a valid Import Permitt_, eggs, live animals, plants, cuttings, wooden products and other biological materials are also not allowed."
Think about whether you REALLY want to be stuck in the line which requires your items to be inspected! And if you do, put them all together in an easily accessible bag, just in case. If it's commercial biscuits, say so on the declaration form and the officer who checks your form will hopefully send you though the "nothing to declare" line anyway. Don't buy lovely "home made" food from the local market because they will physically inspect that.
Last thing you need after such a long flight is to be stuck in the "something to declare" line. Especially if you're flying through an Asian country, they will be inspecting lots of suitcases.