Made the authentic way in copper pans. Made with whole fruit. Kosher - KLBD. Three fruit marmalade orange, grapefruit & lemon. In 1797 the first jar of marmalade was produced in Dundee. Mackays, a family business, is now the last remaining producer of marmalade in the Dundee area - "The Home of Marmalade.". Using traditional open copper pans, the highest quality Spanish citrus fruits and our authentic methods, we ensure rich fruit flavours in every batch and that special home-made taste you expect from Mackays.