Food & Cooking Recipes Breakfast & Brunch Recipes Plum Jam for Sweet-Milk Biscuits Be the first to rate & review! 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 May 16, 2017 Print Rate It Share Share Tweet Pin Email Yield: Makes about 2 1/2 cups This sweet-and-tart jam is easy to make and a perfect complement to our Sweet-Milk Biscuits. Ingredients 2 pounds plums (both red and black), pitted and cut into 2-inch chunks 2 cups sugar Pinch of coarse salt 2 tablespoons fresh lemon juice Directions Stir together plums, sugar, and salt in a large pot. Bring to a boil over medium-high heat, stirring frequently. Cook, stirring frequently, until thickened to the consistency of very thick honey, about 15 minutes. Stir in lemon juice. Let cool to room temperature. Can be refrigerated in an airtight container up to 1 month. Rate it Print