Entertaining Seasonal Summer Entertaining Summer Recipes Sweet-Onion Relish 3.5 (14) 1 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: 2 to 3 cups Use this as a topping for Grilled Sirloin Steak. Ingredients 1 small sweet onion (such as Vidalia), halved and thinly sliced 1 small red onion, halved and thinly sliced 1 cup white-wine vinegar ½ cup sugar 1 tablespoon coarse salt 1 bunch scallions, cut into 2-inch lengths and slivered lengthwise Ground pepper Directions In a medium bowl, combine sweet and red onions; add ice water to cover. Soak for 30 minutes, changing ice water once. Drain onions well, and return to empty bowl. In a medium saucepan, bring vinegar, sugar, and salt to a boil, stirring until sugar is dissolved; pour over onions, and set aside to cool, tossing occasionally. When cool, stir in scallionos. Season with pepper. Rate it Print