Grab a cart and hold onto your samples table, because Costco just dropped a bakery item that’s breaking brains on TikTok. The new Kirkland Signature Marshmallow Crispy Cookies are exactly what they sound like — a brown butter sugar cookie that got a Rice Krispies Treat surgically implanted inside it — and shoppers cannot stop talking about them.
The 24-count box rings up around $9.99 (some Instacart listings show it closer to $11), which works out to well under 50 cents a cookie for something people are calling one of the best Costco bakery drops in years. That’s the kind of math we like to see.
What’s Actually In These Things
Each caramel-colored cookie is built from a rich brown butter dough, then loaded with gooey marshmallow bits and crunchy crispy rice pieces. It’s essentially two nostalgic desserts — the chewy sugar cookie and the classic marshmallow treat — smashed into one bakery case impulse buy.
“It’s the perfect combo of a sugar cookie and a Rice Krispies Treat. It’s chewy but with a little crunch and just out of this world.”— Laura Lamb, Costco Hot Finds
That quote is basically the internet’s whole review in one sentence. One TikTok clip showing the cookies got over 2 million views, and the comments are full of people mapping out their next Costco run purely to hunt these down.
The One Catch Shoppers Keep Mentioning
Before you buy a box just to freeze half of it for later — don’t. Reviewers note the cookies only stay properly chewy for about two to three days in their original packaging before the texture starts to shift. Translation: this is a treat you eat fresh, share with the office, or bring to literally any gathering within 72 hours. Not exactly a hardship, but worth knowing before you commit to a 24-pack solo.
If you’re already a fan of Costco’s bakery case chaos, this drop lines right up next to other recent hits, like the $9.99 Twice-Baked Cinnamon Croissants that already had shoppers rearranging their grocery budgets.
Where To Find Them (Before They Sell Out)
These are showing up in the bakery section near the other Kirkland Signature packaged desserts, not the fresh-baked counter, so don’t waste time circling the rotisserie chicken area. Stock is regional and moving fast — if your warehouse has them, snag a box on this trip rather than planning a return visit. Since Kirkland’s dessert lineup rotates constantly (remember when the discontinued Kirkland chocolate chips made their surprise comeback?), there’s no guarantee these stick around past the season.
And if cookies aren’t dramatic enough for your Costco cart this week, the warehouse is also serving up viral energy on the frozen aisle side with the 3D fruit ice cream everyone’s cracking open on TikTok.
Bottom line: at $9.99 for two viral desserts smashed into one, the Kirkland Signature Marshmallow Crispy Cookies are an easy add to your next Costco run — just eat them fast and maybe don’t tell the rest of the house how many are actually in the box.
Photo credits: Image 1 via TODAY.com; Image 2 via Fox News.
