Costco Recalls Madeleines Over Undeclared Hazelnut Allergen in 11 Locations
A new Costco madeleine recall in 2026 is affecting a specific batch of bakery items sold in select warehouses.
The issue comes down to labeling.
Some packages sold as plain Traditional Madeleines were actually filled with chocolate hazelnut, creating a potential risk for anyone with a tree nut allergy.
How the Packaging Error Happened
This is being treated as an undeclared allergens Costco recall, which is one of the more serious types of food recalls.
In this case, the outer packaging didn’t reflect what was inside. Customers expecting plain madeleines may have unknowingly purchased products containing hazelnuts.
This matters because even small amounts of tree nuts can trigger strong allergic reactions in people with sensitivities.
Which Costco Products Are Recalled
If you’re wondering which Costco products are recalled, this one is limited, but specific.
Traditional Madeleines (Item #2000012)
The issue involves mispackaged units that may contain chocolate hazelnut filling, instead of the standard recipe, and this is what’s driving Costco’s madeleines hazelnut recall.
Where the Affected Products Were Sold
The recalled madeleines were sold between late March and early April at select Costco locations.
The affected stores include:
East Peoria, Illinois
Bellevue, Wisconsin
Pleasant Prairie, Wisconsin
Missoula, Montana
Burlington, Washington
Chico, California
Gilroy, California
Thornton, Colorado
Fairfax, Virginia
Pembroke Pines, Florida
Bayamón, Puerto Rico
If you purchased madeleines from one of these locations during that window, it’s worth taking a second look in your pantry.
Why Nut Allergies Change This
Hazelnuts are part of the broader tree nut category, which is one of the most common food allergies.
Reactions can vary, but, in some cases, they can be severe.
That’s why undeclared allergens are taken seriously, even if the number of affected products is very small.
What To Do Next
If you have this product at home, don’t take any chances.
Costco’s guidance is straightforward under its Costco recall refund policy:
Don’t consume the product if you have a nut allergy.
Return it to your local Costco warehouse.
Receive a full refund.
You don’t need to bring any packaging beyond what you have, but having the item on hand will make the process easier.
A Quick Check Before You Toss It
If you’re not sure if your package is affected, check:
The Product Name: Traditional Madeleines
The Purchase Date: March 30 through April 6
The Location: See Listing Above
That’s usually enough to confirm whether it’s part of Costco’s madeleine recall of 2026.
What This Tells Us
Most recalls like this come down to simple errors, packaging mix-ups, or labeling mistakes.
But, when allergens are involved, even small mistakes matter. And, in situations like this, taking a minute to check what’s in your kitchen is usually all it takes to stay on the safe side.
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