Roasted Tomato Basil Soup is a timeless classic elevated through one simple technique: oven roasting. By roasting fresh Roma tomatoes, we concentrate their natural sweetness and deepen their flavor, creating a soup that is rich, smooth, and intensely satisfying. This recipe delivers a velvety texture and balanced acidity, making it the perfect companion to grilled cheese sandwiches or crusty artisan bread.
This soup is ideal for cozy dinners, casual entertaining, and make-ahead meals. It uses simple ingredients, yet the final result tastes refined, comforting, and restaurant-quality.
PrintRoasted Tomato Basil Soup: Deep Flavor Comfort in Every Spoon
This Roasted Tomato Basil Soup is rich, smooth, and deeply flavorful. Roasted Roma tomatoes, fresh basil, and cream come together to create the ultimate comfort soup, perfect with grilled cheese.
- Prep Time: 20 minutes
- Cook Time: 1 hour 20 minutes
- Total Time: 1 hour 40 minutes
- Yield: 8 servings 1x
- Category: Soup
- Method: Roasting
- Cuisine: American
- Diet: Vegetarian
Ingredients
9 Roma tomatoes, sliced lengthwise
3 tablespoons extra virgin olive oil
2 tablespoons unsalted butter
1 yellow onion, diced
4 garlic cloves, minced
1 tablespoon fresh thyme, minced
1 teaspoon kosher salt
½ teaspoon ground black pepper
1 (28-ounce) can San Marzano crushed tomatoes
1 cup fresh basil, roughly chopped
1 tablespoon sugar
2 cups chicken stock
⅔ cup heavy cream
Instructions
1. Preheat oven to 375°F.
2. Arrange tomato halves on a baking sheet, drizzle with olive oil, and season with salt and pepper.
3. Roast tomatoes for 1 hour, then set aside.
4. Heat butter or olive oil in a large pot over medium-high heat.
5. Add onion and sauté for about 5 minutes until softened.
6. Stir in garlic, thyme, salt, and pepper; cook for 1 minute.
7. Add crushed tomatoes, basil, and sugar; simmer for 10 minutes.
8. Add chicken stock and roasted tomatoes; simmer for 30 minutes, stirring occasionally.
9. Blend soup using an immersion blender or in batches in a blender.
10. Return soup to pot and stir in heavy cream.
11. Serve hot with croutons if desired.
Notes
Roma tomatoes work best, but other varieties may be used.
Dried herbs can be substituted; reduce quantities accordingly.
Vegetable stock may be used instead of chicken stock.
Soup keeps up to 1 week refrigerated and freezes up to 2 months.
Nutrition
- Serving Size: 1 bowl
- Calories: 190
- Sugar: 5g
- Sodium: 389mg
- Fat: 12g
- Saturated Fat: 5g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 9g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 37mg
Why Roasting Tomatoes Makes All the Difference
Roasting tomatoes transforms them completely. The heat caramelizes their natural sugars, reduces excess moisture, and enhances their umami character. When combined with aromatics like onion, garlic, and thyme, the roasted tomatoes form a deeply flavorful base that cannot be achieved through simmering alone.
This method results in
Richer tomato flavor
Natural sweetness without excess sugar
Less acidity and smoother texture
A more complex, savory finish
Ingredient Highlights
Roma tomatoes are ideal for roasting due to their low moisture and concentrated flavor.
Extra virgin olive oil adds richness and helps caramelize the tomatoes.
San Marzano tomatoes provide consistency and depth.
Fresh basil and thyme bring brightness and herbal balance.
Heavy cream adds silkiness without overpowering the tomatoes.
Each ingredient plays a precise role, creating a soup that is bold yet balanced.
Step-by-Step Cooking Overview
The tomatoes are roasted until soft and lightly caramelized. Meanwhile, onions are sautéed until sweet and translucent, then layered with garlic, herbs, crushed tomatoes, and basil. The roasted tomatoes and stock are added and gently simmered to meld flavors. The soup is then blended until smooth and finished with cream for a luxurious texture.
The result is a soup that is comforting, elegant, and deeply flavorful.
Serving Suggestions
Serve this soup hot with grilled cheese, garlic bread, or fresh croutons. A drizzle of olive oil or a sprinkle of Parmesan adds a beautiful finishing touch. For entertaining, garnish with fresh basil ribbons and homemade mini croutons for texture.
Storage and Make-Ahead Tips
This soup stores exceptionally well.
Refrigerate for up to one week in an airtight container.
Freeze for up to two months.
Reheat gently over low heat, stirring occasionally.
Flavors continue to develop over time, making leftovers even more delicious.
Variations and Substitutions
Use vegetable stock to make the soup fully vegetarian.
Substitute whole milk or half-and-half for a lighter version.
Dried herbs may be used if fresh are unavailable, adjusting quantities accordingly.
