Enjoy Crosse & Blackwell Orange Marmalade. Crosse & Blackwell, Orange Marmalade Made With Seville Oranges, Net Wt. 12 Oz (340G). This Full-Bodied Marmalade Is Made From Seville Oranges, Ideal Because Of Their Tangy Flavor, Thick Rind And Rich Natural Orange Color. The Result Is A Beautifully Vibrant And Tangy Preserve. (Note: Description is informational only. Please refer to ingredients label on product prior to use and address any health questions to your Health Professional prior to use.