Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Raspberry-Orange Zest Jam 3.0 (43) 2 Reviews By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on February 11, 2021 Print Rate It Share Share Tweet Pin Email Photo: John Kernick Yield: 4 cups Tart and sweet, this jam gets a bit of extra texture from bits of freshly grated orange zest. The only other ingredients you need are fresh raspberries, sugar, and freshly squeezed lemon juice. Ingredients 3 pounds fresh raspberries 4 ½ cups sugar 4 ½ teaspoons fresh lemon juice Pinch of coarse salt 1 ½ teaspoons finely grated orange zest Directions Place a few small plates in the freezer. Stir berries, sugar, lemon juice, salt, and 1/2 teaspoon zest in a large, heavy stockpot. Bring to a boil, stirring to dissolve sugar and mashing lightly with a potato masher. Skim foam from surface. Cook, stirring more frequently as jam thickens, until it has the consistency of very loose jelly, 8 to 9 minutes. Remove from heat. Remove a plate from freezer; drop a spoonful of jam on it. Return to freezer for 1 to 2 minutes; nudge edge of jam with a finger. It should hold its shape. If jam is too thin and spreads, return it to a boil, testing every minute, until done. Strain about half of the jam; discard seeds. Return strained jam to pot; stir in remaining teaspoon zest. Return to a boil. Remove from heat. Spoon hot jam into hot sterilized jars; cover immediately with sterilized lids. Cook's Notes To sterilize, submerge clean jars in boiling water for 10 minutes. Use new lids, and sterilize them according to manufacturer's instructions. Jars should remain in hot water until they are ready to be filled. Rate it Print