All codes of the cookies sold in 800 gram packages bearing UPC 6 27265 00152 0, where milk is not declared in the list of ingredients, are affected by the alert.
The product has been distributed nationally.
There have been no reported illnesses linked to the cookies, which could cause a serious or life-threatening reaction in people with milk allergies.
The manufacturer, TWI Foods Inc., of Mississauga, Ont is recalling the affected product from the marketplace.
The Canadian Food Inspection Agency is monitoring the effectiveness of the recall.