Tomato Soups

Roasted Tomato Soup

Emma Sullivan By Emma Sullivan 4.9 (412 reviews)
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Roasted Tomato Soup

There's something magical that happens when tomatoes meet high heat in the oven. The sugars caramelize, the edges get slightly charred, and what emerges is pure liquid gold. This roasted tomato soup transforms humble Roma tomatoes into a bowl of pure comfort that tastes like it simmered for hours, when really it comes together in under an hour.

What sets this homemade tomato soup apart from the canned stuff is the deep, complex flavor that only comes from proper roasting. We're not just heating tomatoes here – we're coaxing out every bit of natural sweetness and building layers of flavor that will make your kitchen smell absolutely incredible. The secret weapon? Roasted garlic that becomes sweet and mellow, plus a splash of balsamic vinegar that brightens everything up at the end.

This isn't your average stovetop tomato soup. By taking the time to roast our vegetables first, we're creating a caramelized tomato base that's rich, velvety, and completely satisfying. Whether you're looking for the perfect partner to a grilled cheese sandwich or a elegant starter for dinner guests, this soup delivers every single time.

Why This Is the Best Roasted Tomato Soup

  • Incredible depth of flavor: Roasting at 400°F caramelizes the tomatoes' natural sugars, creating complex, restaurant-quality taste that you simply can't achieve by just simmering raw tomatoes
  • Foolproof technique: Unlike stovetop versions that require constant stirring and monitoring, this oven roasted tomato method is hands-off – just pop everything in the oven and let it work its magic
  • Perfect texture every time: The roasting process reduces excess moisture while concentrating flavors, resulting in a soup that's naturally thick and velvety without flour or other thickeners
  • Roasted garlic magic: A whole head of roasted garlic becomes sweet and creamy, adding incredible depth without any harsh bite
  • Balanced acidity: The balsamic vinegar cuts through the richness and brightens the caramelized flavors, creating perfect harmony in every spoonful

Key Ingredient Tips and Substitutions

The star of this show is definitely the Roma tomatoes – they're meaty, have less water content, and roast beautifully instead of turning mushy. If you can't find Roma tomatoes, any paste tomato variety will work well. In a pinch, regular slicing tomatoes can work too, but you might need to roast them a bit longer to achieve the same caramelization.

For the creaminess, heavy cream is ideal, but you can easily substitute with half-and-half if you prefer something lighter. The roasted garlic is truly non-negotiable – it adds such incredible depth that raw garlic simply can't match. Don't worry about perfectly peeling every clove; just squeeze the soft, caramelized garlic right out of the skins after roasting.

Fresh thyme is wonderful here, but dried thyme works in a pinch – just use about half the amount since dried herbs are more concentrated. The balsamic vinegar might seem like a small addition, but it makes a huge difference in brightening up those deep, roasted flavors.

Delicious Variations to Try

This best tomato soup recipe is incredibly versatile. For a spicy kick, add red pepper flakes to the vegetables before roasting, or stir in a diced jalapeño. If you're feeling fancy, try roasting some red bell peppers alongside the tomatoes for added sweetness and complexity.

For an Italian twist, add fresh basil at the end and serve with a drizzle of good olive oil and freshly grated Parmesan. You can also create a smoky version by adding a chipotle pepper in adobo sauce when blending – just start with a little since they pack heat!

Want to make it heartier? Stir in some cooked white beans or lentils after blending. For a more indulgent version, finish with a splash of sherry or white wine, or swirl in some mascarpone cheese instead of heavy cream.

Making It Vegan-Friendly

This soup easily adapts to vegan diets! Simply skip the heavy cream and use full-fat coconut milk instead – it adds richness without any coconut flavor. You can also use cashew cream (blend soaked cashews with water) for an ultra-creamy, neutral-tasting result.

Another option is to add a tablespoon of tahini when blending, which creates creaminess while adding a subtle nutty depth. The soup is naturally vegetarian-friendly as written, making it perfect for mixed groups with different dietary preferences.

Garnish and Serving Suggestions

This roasted tomato soup is beautiful on its own, but a few thoughtful garnishes can make it feel extra special. A drizzle of good olive oil, a few fresh thyme leaves, or a dollop of crème fraîche all work wonderfully. For texture contrast, try some toasted pumpkin seeds or a sprinkle of freshly cracked black pepper.

Serve alongside classic grilled cheese sandwiches, crusty sourdough bread, or even a simple green salad for a complete meal. The soup also makes an elegant first course for dinner parties when served in smaller portions with artisanal crackers or herb-crusted crostini.

Storage and Make-Ahead Tips

One of the best things about this soup is how well it keeps and reheats. Store covered in the refrigerator for up to 4 days, or freeze for up to 3 months. The flavors actually improve after a day or two, making it perfect for meal prep.

For make-ahead convenience, you can roast all the vegetables up to 3 days in advance and store them covered in the refrigerator. When ready to serve, just add the broth, simmer, blend, and finish with cream. The soup reheats beautifully on the stovetop – just add a splash of broth if it seems too thick after refrigeration.

Add the liquid ingredients and bring to a gentle simmer.
Add the liquid ingredients and bring to a gentle simmer.

Roasted Tomato Soup

Deeply flavored tomato soup made with oven-roasted tomatoes and garlic. Caramelization creates rich, complex flavor.

Prep: 10 min
Cook: 40 min
Total: 50 min
Servings:
6

Nutrition per serving

175 Calories
4g Protein
18g Carbs
10g Fat
4g Fiber
12g Sugar

Instructions

  1. . Preheat oven to 400°F. Halve tomatoes lengthwise and arrange cut-side up on a large baking sheet. Quarter the onion and add to the sheet.
  2. . Cut the top off the garlic head, drizzle with olive oil, wrap in foil. Place on baking sheet. Drizzle remaining oil over tomatoes and onion.
  3. . Tuck thyme sprigs among the vegetables. Roast for 35-40 minutes until tomatoes are caramelized and slightly charred.
  4. . Squeeze roasted garlic from skins into a large pot. Add tomatoes, onion, and vegetable broth. Simmer for 10 minutes.
  5. . Blend until smooth using an immersion blender. Stir in cream, balsamic vinegar, salt, pepper, and red pepper flakes if using.
  6. . Ladle into bowls and garnish with fresh basil, Parmesan, and serve with crusty bread.

Recipe Notes

  • Roma tomatoes are ideal - they're meaty and roast rather than steam.
  • Don't skip the roasted garlic - it adds incredible depth.
  • A splash of balsamic vinegar brightens the caramelized flavors.
  • Vegan? Skip the cream or use coconut cream - the roasted veggies are flavorful enough.