Of Norwich. By appointment to Her Majesty The Queen. Manufacturers of food and household products. Not for the faint-hearted, the Original English Mustard from Colman's will set your taste buds ablaze. Perfect to give your sandwiches, dressings or dips a kick. Or serve in true English style with roasts, sausages or cold meats. Made at the Colman's factory in Norwich, England, holders of the Royal Warrant since 1866. Produced in Great Britain by Colman's of Norwich for Unilever UK.