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Costco has added a new sweet treat to its bakery lineup with the debut of its Peanut Butter Monster Cookies.
“Peanut butter lovers, this one is for you,” Costco wrote in an Instagram post this week. “The new Peanut Butter Monster Cookies are at the Costco Bakery!”
The 24-count packages contain cookies made with brown butter-flavored dough and packed with peanut butter candies, peanut butter chips, oats and chocolate chips, according to to Delish.
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A Costco store in Vallejo, California, on May 29, 2025. (David Paul Morris/Bloomberg/Getty Images)
Shoppers quickly took to Costco’s Instagram comments section to praise the new Peanut Butter Monster Cookies.
“These are the best!!!!” wrote one user.
“I can’t wait to try these!” another added.
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A woman selects croissants at a Costco bakery section in Queens, New York. (Lindsey Nicholson/UCG/Universal Images Group/Getty Images)
“Yes,” a third user wrote, alongside a heart eyes emoji. “I like peanut butter.”
The Peanut Butter Monster Cookies complement Costco Bakery’s current lineup, which includes blueberry and cream muffins, butter croissants, chocolate chip cookies, cheesecakes, pastries and more.
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Customers wait in line at a Costco store in Queens, New York. (Lindsey Nicholson/UCG/Universal Images Group/Getty Images)
The new cookie launch comes as Costco Wholesale recently unveiled a string of record sales during the holiday season.
The retailer said it sold about 4.5 million pies in the three days leading up to Thanksgiving — about 7,000 pies per warehouse — during its first-quarter 2026 earnings call.
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