Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Canning Tomatoes 2.9 (255) 6 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 May 16, 2017 Print Rate It Share Share Tweet Pin Email Yield: 6 1-quart jars Ingredients 18 pounds ripe tomatoes 2 tablespoons salt 12 fresh basil leaves Directions Bring a large pot of water to a boil, and blanch tomatoes, in batches, for 30 seconds. When cool enough to handle, peel, core, and halve. Work over a strainer set over a bowl to catch the juices, and remove the seeds. Add 1 teaspoon salt and 2 basil leaves to each jar. Place tomatoes, cut sides down, in jars. Use a knife or spatula to remove air bubbles or extra space. Press down on the tomatoes to compact, and fill jars with the reserved tomato juice to within 1/2 inch of the rim. Wipe the rim, put on a hot lid and screw top, and transfer jars to the hot water. Repeat until all jars are filled and water covers them by 1 to 2 inches. Bring water to a boil, cover, and process for 45 minutes. Remove jars from pot, and let cool 24 hours. Test seals. Rate it Print