Costco was forced to recall nearly 80,000 pounds of Kirkland Signature butter because of an "undeclared allergen." It forgot to list "milk" on the label.

Nearly 80,000 pounds of Costco butter was recalled because its packaging was missing the "Contains Milk statement."

Last month, the FDA sent out a recall on 79,200 pounds of butter due to an undeclared allergen, according to Food and Wine. Apparently, while packages of both salted and unsalted Kirkland Signature Sweet Cream Butter listed cream as an ingredient, the "Contains Milk" allergy statement might not have been visible on the packaging.