Costco just made one announcement that sent customers into total panic

Shopping at America’s favorite warehouse store just became a lot more dangerous for your waistline.

Cookie lovers across the country are racing to their local Costco locations.

And Costco just made one announcement that sent customers into total panic.

Costco’s latest bakery creation has shoppers abandoning their diets

The wholesale giant’s bakery section has always been a weakness for shoppers trying to stick to their healthy eating plans.

But Costco just dropped a dessert bomb that’s making customers throw caution to the wind.

The Kirkland Signature Marshmallow Crispy Cookie is causing absolute chaos in stores nationwide.

These aren’t your ordinary cookies.

Imagine if your favorite childhood treats got together and created something even better.

These cookies pack brown butter dough with gooey marshmallow chunks and crunchy rice cereal scattered throughout.

What you get is a cookie that’s tender on the inside with just enough texture on the outside to make every bite interesting.

Social media influencer @costcohotfinds posted a video last week showing off the new cookies with the caption "New! These cookies are perfection."¹

The response was immediate and overwhelming.

"These are the best," one Instagram user wrote back. "Put it in the microwave for a few seconds…omg so good."²

Another fan admitted, "I could eat the entire container."³

The price point that’s making wallets happy

At $9.99 for two dozen cookies, shoppers are snatching these up faster than Costco can restock the bakery shelves.

Do the math and you’re looking at roughly 40 cents per cookie.

Instagram user @costcofam4u showed the cookies selling at her local store for the same price point.⁴

But if you’re ordering delivery through Instacart, expect to pay more depending on where you live.

Orlando customers are seeing prices around $11.34 per package through the delivery service.

Smart shoppers are making the trip to their local warehouse to get the better price.

"These look dangerously good," one shopper commented on social media.⁵

TikToker @eatswithtwan filmed herself trying the cookies for the first time at Costco and declared they were so good that she "might need to go and get me another box."⁶

Health-conscious shoppers are asking the tough questions

Not everyone’s jumping on the marshmallow cookie bandwagon without doing their homework first.

Health-minded customers are asking the important questions before they indulge.

"Does anyone know the calories on these cookies?" one Instagram user wrote. "I can’t find the info anywhere."⁷

Costco lists the nutritional information on their website for anyone who wants to know.

Each cookie contains 210 calories.

That’s not exactly diet food, but it’s not stopping the cookie craze.

"Just don’t look at the ingredients label and you’ll stay happy," another social media user joked.⁸

Some customers are getting creative with how they’re enjoying these treats.

One shopper suggested putting a cookie in the air fryer for a minute or two to get the marshmallow bits nice and gooey.

Another fan said they’re getting marshmallow fluff to make marshmallow cookie sandwiches.

The nostalgia factor that’s driving sales

Part of what’s making these cookies so popular is the childhood memories they’re triggering.

Food enthusiasts are saying they taste like the best nostalgic desserts rolled into one.

"They remind me of an oatmeal cream pie turned into a single cookie," one person explained.⁹

Another customer who tried a free sample described them as having a "crunchy, crispy crust" with "soft marshmallows and chewy center" that’s "not too sweet."

The butter cookie base is what separates these from Costco’s previous s’mores cookies.

These new treats have a different personality entirely – they’re lighter colored, skip the chocolate, and lean more toward a classic butter cookie foundation.

Some longtime Costco fans are missing the s’mores variety and wondering when they might return.

"Are the s’mores cookies ever coming back?" one fan asked.¹⁰

But the marshmallow crispy cookies seem to be filling that void nicely.

Social media

The power of social media influence is spreading the word faster than traditional advertising ever could.

Users are sharing preparation tips, taste test videos, and shopping hauls featuring these cookies.

The hashtag buzz is driving customers to stores specifically to hunt down these treats.

"Instantly my favorite cookies I’ve bought at Costco," one Reddit user declared.¹¹

The positive comments just keep rolling in across all platforms.

Fans are describing them as "dangerously good" and warning others about their addictive nature.

Limited availability creates urgency

Like most Costco bakery specials, nobody knows exactly how long these marshmallow cookies will be available.

The warehouse giant has a reputation for introducing seasonal treats that vanish without warning.

That uncertainty is creating even more urgency for customers to get their hands on these treats while they can.

"We don’t know how long these will stick around, so make sure to grab a pack (or two)," one food blogger advised.¹²

The combination of great taste, affordable pricing, and potential scarcity is a recipe for retail panic.

Smart shoppers are already stocking up, knowing these could disappear from shelves as quickly as they appeared.

Costco didn’t immediately respond to inquiries about how long the cookies will be available.

But based on the customer response, they’d be smart to keep this one around for a while.

The marshmallow crispy cookie phenomenon shows once again why Costco’s bakery section remains one of the most dangerous places for anyone trying to eat healthy.

¹ Fox Business, "Costco’s new bakery item quickly becomes latest craze," July 13, 2025.

² Ibid.

³ Tasting Table, "Costco’s New Cookies Have Fans Running To The Store," July 2025.

⁴ Fox Business, "Costco’s new bakery item quickly becomes latest craze," July 13, 2025.

⁵ Parade, "Fans Say They Could ‘Eat The Entire Container’ of Costco’s Soft and Chewy New Treat," July 2025.

⁶ Tasting Table, "Costco’s New Cookies Have Fans Running To The Store," July 2025.

⁷ Fox Business, "Costco’s new bakery item quickly becomes latest craze," July 13, 2025.

⁸ Ibid.

⁹ Men’s Journal, "Costco Bakery Fanatics Cannot Get Enough of This New Item," July 2025.

¹⁰ Ibid.

¹¹ Ibid.

¹² Allrecipes, "Costco’s Newest Bakery Treat Has Fans Saying They ‘Could Eat the Entire Container’," July 2025.