Making the perfect Tomato Basil Soup is straightforward. Follow these step-by-step instructions:

1. Sauté Onions: In a large pot, heat the olive oil over medium heat. Add the diced onion and sauté until translucent, about 5 minutes.
2. Add Garlic: Stir in the minced garlic and cook for an additional minute, ensuring it doesn’t burn.
3. Incorporate Tomatoes: Add the diced tomatoes to the pot. If using canned tomatoes, crush them slightly with a spoon.
4. Pour in Broth: Add the vegetable or chicken broth and bring to a simmer.
5. Season the Soup: Stir in the optional sugar, salt, and pepper. This balances out the acidity of the tomatoes.
6. Simmer: Let the soup simmer for about 20 minutes, allowing the flavors to meld together.
7. Blend the Soup: Use an immersion blender to puree the soup until smooth. If you don’t have an immersion blender, carefully transfer the soup to a countertop blender in batches.
8. Add Basil: Stir in the chopped basil leaves, reserving a few for garnish.
9. (Optional) Add Cream: For a creamier soup, add heavy cream at this stage and mix until well combined.
10. Serve: Ladle the soup into bowls and garnish with additional basil if desired.

These clear steps will guide you effortlessly in crafting your own Tomato Basil Soup.