Marshmallow Fluff, manufactured by Durkee-Mower, does not bear an O/U symbol on some 16 oz. containers due to a printing error, but it is, in fact, Kosher and pareve.

From The cRc: McCormick Tartar Sauce
Please be advised that McCormick Tartar Sauce is sold on many online stores, including Amazon and Walmart, with the cRc Kosher logo appearing on the