Holidays & Events Thanksgiving Recipes Thanksgiving Side Dish Recipes Sweet Potato Recipes Roasted Sweet Potatoes and Soy Sauce 4.2 (5) Add your rating & 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 February 26, 2018 Print Rate It Share Share Tweet Pin Email Photo: Bryan Gardner Ingredients Sweet potatoes Soy sauce Directions Preheat oven to 400 degrees. Prick sweet potatoes with a fork in several places and place on a foil-lined rimmed baking sheet. Roast until soft and tender inside and juices are caramelized, at least 1 hour, depending on size. Split open and drizzle with soy sauce. Rate it Print