This creamy roasted tomato soup pairs perfectly with savory, melted cheese toasts for a comforting meal. The roasting process intensifies the natural sweetness of the vegetables to create a rich flavor profile.
List of ingredients
- 6 roma tomatoes, halved – provides the hearty base.
- 1 cup cherry tomatoes, whole – adds pops of sweetness.
- 1 medium yellow onion, roughly chopped – creates aromatic depth.
- 1 head of garlic, halved (use 2 small heads for extra garlic flavor) – adds a mellow, roasted taste.
- 1/4 cup extra-virgin olive oil – used for roasting and richness.
- 1 cup vegetable broth or chicken broth – adjusts the soup consistency.
- 1/4 cup heavy cream – adds a velvety texture (adjust to taste).
- 5 large basil leaves, plus more for serving – provides fresh herbal notes.
- 1 teaspoon balsamic vinegar – adds a touch of acidity.
- Kosher salt and freshly ground black pepper – essential for seasoning.
- Sugar – optional, to balance acidity.
- 1 french or sourdough baguette, thinly sliced – for the crispy toasts.
- Olive oil and shredded gruyère cheese – enough to cover the baguette slices.
- Salt and pepper to taste – for seasoning the toasts.
step-by-step instructions
- Roast the vegetables: Preheat your oven to 400 degrees F. In an oven-safe dish, toss the roma tomatoes, cherry tomatoes, chopped onion, halved garlic head, olive oil, salt, and pepper. Roast for 30-40 minutes until the vegetables are tender and the tomatoes begin to burst and char.
- Alternative stovetop method: If you prefer not to use the oven, place the tomatoes, onion, garlic, olive oil, salt, and pepper in a large pot over medium heat. Sauté and simmer until the vegetables soften and burst.
- Prepare the cheesy toasts: While the vegetables roast, place thinly sliced baguette on a baking sheet. Drizzle with olive oil and top each slice with shredded gruyère cheese, then season with salt and pepper. Bake for about 15 minutes until the bread is crispy and the cheese is melted and golden.
- Blend the soup: Transfer the roasted vegetable mixture into a high-speed blender or use an immersion blender. Squeeze the roasted garlic cloves out of their skins into the blender and discard the skins. Add the broth and basil leaves, ensuring all pan juices and oils are included. Blend until completely smooth.
- Final adjustments: Stir in the heavy cream and balsamic vinegar. Taste the soup and adjust the seasoning with salt, pepper, or a pinch of sugar if it is too acidic.
- Serve: Pour the soup into bowls, top with the crispy gruyère toasts and fresh basil leaves, and serve immediately.
Optimization Tips for Roasted Flavors
Use High-Heat Roasting for Caramelization
Ensure your oven is fully preheated to 400 degrees F before adding the vegetables. The high heat triggers the Maillard reaction, which browns the onions and chars the tomato skins. This process creates a deeper, smokier flavor that cannot be achieved by simmering alone.
Maximize the Pan Juices
When transferring vegetables to the blender, use a rubber spatula to scrape every bit of liquid from the roasting pan. These caramelized juices contain the most concentrated flavor of the dish. Including them ensures the soup has a rich, full-bodied taste.
Squeeze Garlic Carefully
Roasted garlic becomes soft and paste-like, making it easy to squeeze from the papery skin. Be sure to remove all the skins entirely before blending to avoid small, papery fragments in the final texture. This results in a perfectly smooth, professional consistency.
Balance Acid with Sugar
Depending on the variety of tomatoes used, some batches may be more acidic than others. A small pinch of granulated sugar can neutralize excess tartness without making the soup taste sweet. Always taste the soup after adding balsamic vinegar before deciding if sugar is necessary.
Ingredient Substitutions and Alternatives
Dairy-Free Creamy Alternatives
To make this recipe vegan or dairy-free, replace the heavy cream with full-fat coconut milk or cashew cream. These options provide the same thickness and mouthfeel as dairy. If using coconut milk, be aware that it may add a subtle coconut flavor to the soup.
Substituting Gruyère Cheese
If gruyère is unavailable, substitute it with other melting cheeses like Comté, Emmental, or a sharp White Cheddar. For a smokier profile, shredded Gouda is an excellent choice. Ensure the substitute is a hard cheese that browns well under a broiler.
Using Different Tomato Varieties
While roma and cherry tomatoes are recommended, you can use heirloom or plum tomatoes for a different flavor profile. Heirloom tomatoes often provide a more complex, fruity taste. Just ensure you maintain the total volume of tomatoes to keep the consistency correct.
Replacing Balsamic Vinegar
If you do not have balsamic vinegar, a teaspoon of lemon juice or apple cider vinegar can provide the necessary acidity. Balsamic is preferred for its sweetness, but lemon juice offers a brighter, fresher finish. Adjust the amount based on the sharpness of the substitute.
Flavor Variations and Enhancements
Adding Spicy Notes
For a kick of heat, add a pinch of red pepper flakes to the vegetables before roasting. Alternatively, stir in a teaspoon of sriracha or cayenne pepper during the blending process. This pairs exceptionally well with the creaminess of the gruyère toasts.
Incorporating Roasted Red Peppers
Adding one or two roasted red peppers to the blender creates a more complex, sweet flavor. You can use jarred roasted peppers or roast fresh ones alongside the tomatoes. This addition deepens the orange-red color of the soup.
Exploring Different Fresh Herbs
While basil is the classic pairing, you can use fresh thyme or rosemary for a more earthy tone. Add these herbs during the roasting phase for a mellow flavor, or blend them in at the end for a punchier taste. Fresh parsley added as a garnish also adds a clean finish.
Enhancing Savory Depth with Parmesan
Stirring in a tablespoon of grated Parmesan cheese during the final seasoning stage adds a salty, umami depth. You can also sprinkle a bit of Parmesan on the baguette slices before baking them. This creates a double-layer of cheese flavor that complements the gruyère.
Serving and Presentation Guide
Pairing with Grilled Cheese
For a more substantial meal, serve the soup with a traditional grilled cheese sandwich instead of toasts. Use a combination of sourdough and sharp cheddar for the best contrast. The dipping action of the sandwich into the soup is a classic culinary pairing.
Adding Visual Contrast with Pesto
Drizzle a small amount of basil pesto in a swirl pattern on top of the served soup. This adds a vibrant green color and an extra layer of garlic and pine nut flavor. It transforms the dish into a restaurant-quality presentation.
Serving with Homemade Croutons
If you prefer smaller bites, cut the gruyère toasts into small squares to create cheesy croutons. Scatter them across the surface of the soup just before serving. This ensures every spoonful has a bit of crunch and melted cheese.
Plating for Guests
Serve the soup in wide, shallow bowls to allow more surface area for the toasts. Place two or three toasts leaning against the edge of the bowl for an elegant look. Garnish with a single, small basil leaf in the center for a professional touch.
Storage and Reheating Instructions
Refrigerating the Soup
Store the blended soup in an airtight container in the refrigerator for up to 4 days. Keep the cheese toasts in a separate airtight container to prevent them from becoming soggy. Ensure the soup has cooled completely before sealing the lid to avoid condensation.
Freezing the Tomato Base
For long-term storage, freeze the soup without the heavy cream. Cream can separate and change texture during the freezing and thawing process. Once thawed, simply reheat the soup and stir in the fresh cream at the end.
Best Reheating Methods
Reheat the soup on the stovetop over low to medium heat, stirring occasionally to prevent burning. If using a microwave, heat in short intervals and stir in between. Avoid boiling the soup after adding cream, as this can cause the dairy to curdle.
Refreshing the Cheese Toasts
To bring back the crunch to stored toasts, place them in a 350 degree F oven for 3-5 minutes. Avoid the microwave for the toasts, as it will make the bread chewy rather than crispy. A quick toast in the oven restores the melted texture of the cheese.
Make-Ahead Preparation Strategy
Pre-Roasting the Vegetables
You can roast the tomatoes, onions, and garlic a day in advance. Store the roasted mixture, including the juices, in a sealed container in the fridge. When ready to serve, simply transfer the cold mixture to the blender and proceed with the broth and cream.
Preparing the Baguette Slices
Slice the baguette and store the pieces in a sealed bag at room temperature. You can even pre-measure the shredded gruyère into a bowl. However, only assemble and bake the toasts immediately before serving to ensure maximum crispiness.
Blending the Base Early
The soup can be fully blended and seasoned ahead of time, excluding the final touch of cream. Store the base in the fridge and heat it up on the stove. Stir in the heavy cream and balsamic vinegar right before plating for the freshest taste.
Common Troubleshooting
Fixing a Thin Consistency
If the soup is too thin, simmer it on the stove for an extra 10-15 minutes to reduce the liquid. You can also blend in a small piece of roasted potato or a tablespoon of tomato paste to thicken it. Avoid adding too much flour, as it can change the clean tomato flavor.
Correcting Overly Tart Soup
If the soup tastes too acidic, add a pinch of sugar or a small knob of unsalted butter. The fats in butter help mellow out the acidity of the tomatoes. Gradually add these elements, tasting after each addition until the balance is right.
Preventing Cream Curdling
To prevent the heavy cream from curdling, ensure the soup is not at a rolling boil when you stir it in. Remove the pot from the heat source and then whisk in the cream. Using room-temperature cream rather than ice-cold cream also reduces the risk of separation.
Frequently Asked Questions
Can I use canned tomatoes instead of fresh?
You can use canned whole peeled tomatoes, but you will lose the charred flavor provided by roasting. If using canned tomatoes, simmer them with the sautéed onion and garlic, then blend. You may need to reduce the amount of broth since canned tomatoes contain more liquid.
How do I prevent the garlic from burning?
Ensure the garlic head is halved crosswise and drizzled well with olive oil. If the garlic cloves are small, you can wrap the halved head in a piece of aluminum foil. This protects the cloves from direct heat while allowing them to steam and soften.
What is the best baguette for cheesy toasts?
Sourdough baguette is ideal because its sturdy structure supports the weight of the melted cheese without becoming too soft. A traditional French baguette also works well for a lighter, airier crunch. Avoid using very soft sandwich breads, as they will not crisp up sufficiently.
Print
Roasted Tomato Soup with Crispy Gruyère Toasts
- Total Time: 45 minutes
- Yield: 3 servings 1x
- Diet: Vegetarian
Description
A comforting roasted tomato soup paired with cheesy, crispy gruyère toasts, perfect for the start of fall.
Ingredients
- 6 roma tomatoes, halved
- 1 cup cherry tomatoes, whole
- 1 medium yellow onion, roughly chopped
- 1 head of garlic, halved
- 1/4 cup extra-virgin olive oil
- 1 cup vegetable broth
- 1/4 cup heavy cream
- 5 large basil leaves
- 1 teaspoon balsamic vinegar
- Kosher salt and freshly ground black pepper
- 1 french or sourdough baguette, thinly sliced
- olive oil, for toasts
- shredded gruyère cheese, for toasts
Instructions
- Roast the base: Preheat oven to 400 degrees F. In an oven safe dish, toss in your tomatoes, onion, garlic, olive oil and salt and pepper. Roast for 30-40 minutes until everything is tender and the tomatoes are beginning to burst and char.
- Alternative method: Place all the same above ingredients with olive oil, salt and pepper in a large pot on medium heat. Let it simmer out, burst and get tender!
- Make the toasts: On a baking sheet, thinly slice baguette, drizzle on olive oil and shredded gruyère to cover the surface area of the toasts, season with salt and pepper. Bake until the gruyère is melted and the baguette is crispy, about 15 minutes.
- Blend: Pour your tomato mixture in a high speed blender. Squeeze out the roasted garlic and discard the skins. Blend with vegetable broth and your basil leaves, including all the liquid, oils and tomato juices from the pan until smooth.
- Serve: Adjust with salt, pepper and sugar. Finish with heavy cream and balsamic vinegar. Serve in bowls, topped with your toasts and fresh basil.
Notes
For a vegan alternative, remove the cream and cheese or substitute with full-fat coconut milk and vegan cheese.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Soups & Stews
- Method: Roasting
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 264 kcal
- Sugar: 6 g
- Sodium: 331 mg
- Fat: 25 g
- Saturated Fat: 7 g
- Unsaturated Fat: 17 g
- Trans Fat: 0 g
- Carbohydrates: 9 g
- Fiber: 2 g
- Protein: 2 g
- Cholesterol: 22 mg