Food & Cooking Recipes Lunch Recipes Tomato Soup 3.4 (322) 47 Reviews 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 February 19, 2021 Print Share Share Tweet Pin Email Yield: 6 cups This simple recipe for delicious tomato soup is part of the Kirkland Signature Martha Stewart product line, available at Costco. It makes for a delicious lunch, and pairs perfectly with our Grilled Cheese recipe. Ingredients 6 tablespoons unsalted butter 2 medium yellow onions, chopped 2 cloves garlic, chopped 24 ounces canned whole plum tomatoes 3 cups homemade or low-sodium store-bought chicken stock 2 teaspoons sea salt ¼ teaspoon freshly ground black pepper Directions Melt butter in a large saucepan over medium-low heat. Add onion and garlic; cook, stirring, until onions have softened, about 15 minutes. Add tomatoes, chicken stock, salt, and pepper; bring to a boil. Reduce heat to low and cook until tomatoes, onions, and garlic are soft, 10 to 20 minutes. Working in batches, transfer soup to the jar of a blender and puree until smooth. Return to saucepan and place over medium heat. Cook until soup is heated through. If soup seems too thick, stir in some extra stock to thin. Serve immediately. Print