Grab a cart, grab a friend, and maybe grab a coffee — because Costco just made every Tim Tam fan’s dream come true. Arnott’s Tim Tam Original Chocolatey Cookies, Australia’s most iconic biscuit, are now stacked on pallets in Costco warehouses across the country, and shoppers are cleaning them out almost as fast as they hit the shelves. If you’ve ever stuffed a suitcase full of these on your way home from Down Under, you can finally stop rationing.
What’s In the Box
Costco’s version (Item #1967992) is a proper warehouse-club flex: six 7-ounce sleeves bundled into one box, for a grand total of 66 cookies. Each Tim Tam is built from two malted biscuits layered with a light chocolate cream filling and wrapped in a thin, textured chocolate coating — basically a whole snack architecture in one bite. Pricing runs between roughly $13.69 and $14.99 depending on your warehouse, which works out to a fraction of what you’d pay grabbing individual 7-ounce sleeves at $5 a pop in the international aisle. Social media sleuths have also confirmed these boxes are imported straight from Arnott’s Australian production line, not a domestically tweaked version, so purists can relax.
If you’re the type who plans your Costco coupon book run around what’s worth stocking up on, put this one on the list — crowd-sourced inventory trackers say roughly 45% of U.S. warehouses had already blown through their first pallet shipment, and stores are scrambling to reorder.
The Tim Tam Slam, Explained
Here’s why this cookie has a cult following instead of just a fan base: the Tim Tam Slam. Bite off two opposite corners of the biscuit, dunk one exposed corner into a hot drink — coffee, tea, or hot chocolate all work — and use the cookie like a straw. The heat melts the cream filling into a gooey, fudgy center in seconds. The trick is timing: slam the whole thing into your mouth the moment it goes soft, before it collapses into your coffee mug.
“I went to Costco on a standard routine run and stumbled directly onto a fresh pallet. I bought three boxes immediately because if you know what these are, you know they will be gone by next weekend.”
The ritual has gone properly viral thanks to TikTok, with even celebrities getting in on it — Isla Fisher demoed the Slam on “The Kelly Clarkson Show,” and Sarah Snook showed it off on “The Tonight Show.” If you’ve never tried it, this is the excuse you needed.
Why This Matters For Your Cart
Tim Tams landing at Costco is part of a bigger pattern: the warehouse giant has been leaning harder into exclusive and limited-time imports to give members something they can’t just grab at a regular grocery store. Pair that with the fact that this drop is genuinely a better deal per cookie than what you’d find at a specialty import shop, and it’s an easy yes for your next trip. If you’re already working your Costco membership for all it’s worth, toss this on the list right next to the food court’s other viral hits.
Just don’t wait too long to decide. Between the novelty, the price, and the built-in party trick, this is exactly the kind of item that vanishes off shelves before most shoppers even hear about it.
Bottom Line
Costco is now stocking bulk 66-cookie boxes of Arnott’s Tim Tam Original biscuits for around $14 — imported straight from Australia and already flying off pallets nationwide. Grab a box (or three), pour a hot drink, and give the Tim Tam Slam a try. Your snack drawer will thank you.
