Food & Cooking Recipes Soups, Stews & Stocks Soup Recipes Immunity Boosting Soup 2.6 (8) 1 Review By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on June 14, 2017 Print Share Share Tweet Pin Email Photo: Richard Pierce Yield: 3 quarts This nourishing soup bolsters immunity and helps ease cold and flu symptoms, says herbalist Rosemary Gladstar. Read more about boosting your immunity in Winter Wellness. Ingredients 1 ounce dried astragalus root 4 ounces fresh dandelion root, thinly sliced (or 2 ounces dried) 4 ounces fresh burdock root, thinly sliced (or 2 ounces dried) 1 tablespoon grated fresh gingerroot 1 tablespoon dried kelp, dulse, or other sea vegetable 2 tablespoons olive oil 1 medium-size onion, chopped 5 to 8 medium-size fresh shiitake mushrooms 2 to 3 cloves garlic, minced ½ cup miso paste, (any variety) Directions Bring 3 quarts of water to a boil and reduce heat. Add astragalus, dandelion, burdock, ginger, and sea vegetable; cover and simmer for 45 minutes to an hour. Strain, return broth to pot, and keep over medium heat. In a saute pan, heat olive oil over medium heat; add onion and mushrooms, and saute until tender. Add garlic; saute for a few more minutes. Add entire mixture to broth. Turn off heat, and stir in miso paste. Cook's Notes Fresh burdock root (also called gobo) and dandelion root are available in some grocery stores. Dried burdock, astragalus, and dandelion root are available at herb stores or online. Print