Roasted Tomato Basil Soup Recipe

If you’re looking for a cozy comfort food that warms you from the inside out, this Roasted Tomato Basil Soup Recipe is an absolute game-changer. I absolutely love how roasting the tomatoes and garlic deepens the flavors, turning a simple soup into something rich, velvety, and packed with that fresh, herbaceous punch of basil. Whether it’s a chilly evening or you need a wholesome, stick-to-your-ribs kind of meal, this soup will become your new go-to. Trust me, once you try it, you’ll understand why my family goes crazy for it every time I make it.

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Why You’ll Love This Recipe

  • Deep Roasted Flavor: Roasting the tomatoes, garlic, and onions brings out an incredible sweetness and depth that you just can’t get from sautéing.
  • Fresh Herb Brightness: The fresh basil added both during cooking and as a garnish gives this soup a lovely pop of fresh, vibrant flavor.
  • Comfort in a Bowl: This soup is super satisfying and just the right balance between creamy and light, perfect for any season.
  • Simple and approachable: Uses straightforward ingredients and steps, making it beginner-friendly but impressive enough for guests.

Ingredients You’ll Need

Each ingredient in this Roasted Tomato Basil Soup Recipe works together to create layers of flavor—from the roasted veggies’ caramelized sweetness to the fresh basil’s herbal brightness. When selecting tomatoes, ripe Roma and grape or cherry tomatoes make all the difference for that sweet, slightly tangy base.

Flat lay of halved Roma tomatoes with vibrant red flesh and seeds visible, a cluster of shiny red grape tomatoes, peeled whole garlic cloves with smooth skins, thinly sliced pale yellow onions arranged in neat rounds, a small white bowl filled with golden olive oil, fresh green basil leaves loosely piled with some sprigs, another small white bowl with coarse salt, a small white bowl containing cracked black peppercorns, a simple white ceramic bowl filled with clear vegetable broth, all ingredients arranged symmetrically and balanced, placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997 - Roasted Tomato Basil Soup, roasted tomato soup recipe, easy tomato basil soup, homemade tomato soup, comforting soup recipes
  • Roma tomatoes: These are perfect for roasting because of their dense flesh and fewer seeds, giving you a rich tomato base.
  • Grape or cherry tomatoes: They burst with juicy sweetness and add a lovely contrast to the Roma tomatoes.
  • Olive oil: Use good quality extra virgin for best flavor; it’s key in roasting and adding richness.
  • Garlic cloves: Roasting whole garlic mellows its sharpness into a buttery, sweet flavor.
  • Yellow onions: They caramelize beautifully when roasted, lending sweetness and complexity.
  • Fresh basil: Fresh basil is essential here—adding some during the simmer infuses the soup, while fresh chopped basil for garnish brightens it up.
  • Vegetable broth: Low-sodium helps control saltiness and lets the tomato flavor shine.
  • Grilled cheese or grilled cheese croutons (optional): Because what’s tomato soup without a gooey grilled cheese? I’ll share my simple method for homemade croutons too.
Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

I like to think of this Roasted Tomato Basil Soup Recipe as a delicious canvas. You can personalize it to suit your taste buds or dietary needs. Over time, I’ve tried a few twists and I encourage you to experiment too—it’s so fun to make it your own.

  • Creamy Version: Adding half a cup to a full cup of heavy cream makes it silky smooth and indulgent—perfect for when you want a richer soup. My family swoons over this one on cold nights.
  • Cheesy Kick: Stirring in finely shredded Parmesan just before serving adds a lovely umami boost that pairs beautifully with the basil.
  • Spicy Twist: I once tossed in a pinch of red pepper flakes before roasting to give the soup a subtle heat—it’s a simple way to wake up your taste buds.
  • Vegan-Friendly: Just skip the cream and cheese, and use vegetable broth—this soup shines brightly on its own!

How to Make Roasted Tomato Basil Soup Recipe

Step 1: Roast Your Veggies to Perfection

Preheat your oven to 425°F (220°C). Lay your Roma tomatoes cut side up on a rimmed baking sheet, drizzle with 3 tablespoons of olive oil, and season generously with salt and black pepper. For the garlic and onions, spread them out on another baking sheet and toss with the remaining 1 1/2 tablespoons of olive oil, then sprinkle with salt and pepper as well. Roasting these in separate pans helps everything cook evenly.

Pop the garlic in first and roast it for about 15 minutes until it just starts to turn golden and fragrant. Then add the onions and roast for about 30-35 minutes until they develop those gorgeous browned edges. Finally, let the tomatoes roast for 40-45 minutes until they start to caramelize and brown slightly—this step really develops rich, concentrated flavor that’s the core of this soup.

Step 2: Simmer and Infuse

Once roasted, combine the tomatoes, garlic, and onions in a large pot. Pour in 5 cups of low-sodium vegetable broth and add about three-quarters of your fresh basil. Season with salt and pepper to taste. Bring to a boil, then cover and reduce the heat to let it simmer gently for 20 minutes. This allows all those flavors to meld together beautifully.

Step 3: Blend Until Silky Smooth

Carefully blend the soup using an immersion blender right in the pot, or if you prefer, work in batches with a countertop blender. Fill the blender only halfway and cover the lid opening with a kitchen towel to avoid splatters—trust me, I learned this the messy way! Blend until perfectly smooth and creamy. Add the remaining chopped basil on top before serving for a fresh, eye-catching garnish.

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Pro Tips for Making Roasted Tomato Basil Soup Recipe

  • Roast Separately: Roasting onions and tomatoes on separate pans prevents overcrowding and ensures each vegetable caramelizes evenly rather than steaming.
  • Use Fresh Basil Twice: Adding basil both during simmering and as a final garnish layers the flavor nicely, giving you that fresh herbal punch.
  • Blending Safety: When using a blender, leaving the center lid off and covering with a towel avoids pressure build-up and messy eruptions.
  • Skip Peeling: I used to peel tomatoes but found roasting softens skins so much they blend right in—saving time without sacrificing texture.

How to Serve Roasted Tomato Basil Soup Recipe

A white bowl filled with bright orange tomato soup, topped with small green basil pieces and two larger basil leaves in the center, sits on a white plate. Next to the bowl are two triangle halves of golden-brown grilled cheese sandwich showing melted cheese inside. The bowl and plate sit on a wooden board placed on a dark green cloth over a white marbled surface. In the background, another white bowl with the same soup and basil garnish, a few red tomatoes on the vine, and a wooden bowl with fresh green leaves are visible. photo taken with an iphone --ar 2:3 --v 7 - Roasted Tomato Basil Soup, roasted tomato soup recipe, easy tomato basil soup, homemade tomato soup, comforting soup recipes

Garnishes

I usually sprinkle chopped fresh basil over the top just before serving—it brightens up every spoonful. Sometimes I drizzle just a touch of good olive oil for a silky finish or a sprinkle of cracked black pepper for a tiny kick. If I’m feeling indulgent, a few shavings of Parmesan cheese on top add a perfect nutty flavor.

Side Dishes

This soup practically begs for grilled cheese, right? I love making classic grilled cheese sandwiches with sourdough bread and melting mozzarella. Alternatively, if I want a lighter touch, I cut grilled cheese into croutons and toss them right in my bowl. A crisp green salad or some toasted crusty bread also pairs beautifully.

Creative Ways to Present

For special get-togethers, I like serving this soup in mini toasted bread bowls—so charming and a total crowd-pleaser! Another fun idea is layering the soup in clear glasses with small grilled cheese bites on top for a deconstructed twist. Little basil leaves floated on top also make it look extra inviting.

Make Ahead and Storage

Storing Leftovers

I usually store any leftover soup in airtight containers in the fridge for up to 4 days. The flavors actually deepen overnight, so it tastes even better the next day—perfect for those busy nights when cooking from scratch sounds like too much work.

Freezing

This Roasted Tomato Basil Soup Recipe freezes beautifully, which is such a relief during the winter months. I portion it into smaller containers or freezer bags, leaving some space for expansion. When you’re ready to eat, just thaw in the fridge overnight and reheat gently on the stove.

Reheating

To reheat, warm the soup over low to medium heat, stirring occasionally to prevent scorching. If it seems a bit thick after refrigeration or freezing, stir in a splash of broth or water to loosen it up. Avoid boiling to keep the flavors bright and fresh.

FAQs

  1. Can I use canned tomatoes instead of fresh for this roasted tomato basil soup recipe?

    You can, but fresh tomatoes really bring the best flavor and texture to this recipe. Canned tomatoes will give you a different, less caramelized depth and might make the soup a bit more watery. If using canned, try to choose high-quality whole peeled tomatoes and add some extra roasting or sautéing to build up flavor.

  2. Is it necessary to peel the tomatoes before roasting?

    I don’t peel my tomatoes because once roasted, their skins soften enough to blend right in without any noticeable texture. It saves time and honestly, the soup tastes fantastic either way. But if you prefer a very smooth texture, you can remove peels after roasting.

  3. How can I make this soup creamy without dairy?

    If you want creaminess without dairy, try adding a splash of canned coconut milk or a dollop of cashew cream after blending. They add richness while keeping it vegan-friendly and delicious.

  4. Can I prepare parts of this soup in advance?

    Absolutely! You can roast the tomatoes, onions, and garlic a day ahead and keep them refrigerated. When ready, just combine with broth and basil to finish the simmer and blending steps. It’s a great way to cut down on active cooking time.

Final Thoughts

I used to struggle finding a tomato soup recipe that felt both homemade and truly special, but this Roasted Tomato Basil Soup Recipe changed all that for me. It’s rich, flavorful, and so comforting—like a warm hug in a bowl. The roasting step is my secret weapon to take simple ingredients to something spectacular, and now it’s a staple in my kitchen. I can’t recommend it enough for your next cozy meal or when you want to impress friends with little effort. Give it a try, and I bet it’ll become one of your favorite recipes too!

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Roasted Tomato Basil Soup Recipe

Roasted Tomato Basil Soup Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 112 reviews
  • Author: Hannah
  • Prep Time: 10 minutes
  • Cook Time: 1 hour 5 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: 6 servings 1x
  • Category: Soup
  • Method: Roasting
  • Cuisine: American
  • Diet: Vegetarian

Description

This Roasted Tomato Basil Soup features perfectly roasted Roma and grape tomatoes, caramelized onions, and garlic, blended with fresh basil and vegetable broth into a smooth, comforting soup. With a vibrant flavor profile and optional grilled cheese pairing, it’s an ideal cozy meal that balances roasted sweetness and fresh herbaceous notes.


Ingredients

Scale

Vegetables and Herbs

  • 2 1/4 lbs Roma tomatoes, halved lengthwise
  • 1 1/4 lbs grape tomatoes or cherry tomatoes
  • 8 cloves garlic, peeled and left whole
  • 2 small yellow onions, sliced just under 1/2-inch thick
  • 1 1/2 cups (26g) lightly packed fresh basil, divided

Other Ingredients

  • 4 1/2 Tbsp olive oil, divided
  • Salt and black pepper, to taste
  • 5 cups low-sodium vegetable broth

Optional for Serving

  • Prepared grilled cheese or grilled cheese croutons (see notes)

Instructions

  1. Preheat the oven: Set your oven to 425 degrees Fahrenheit to prepare for roasting the vegetables.
  2. Prepare tomatoes: Arrange the halved Roma tomatoes cut side upright on a rimmed baking sheet. Toss the tomatoes with 3 tablespoons of olive oil and season them with salt and black pepper evenly.
  3. Prepare onions and garlic: Place the sliced onions and whole garlic cloves on a separate rimmed baking sheet. Brush all sides with the remaining 1 1/2 tablespoons of olive oil and sprinkle with salt and black pepper.
  4. Roast vegetables: Put both baking sheets side by side in the oven. Roast garlic for 15 minutes or until just golden, then remove from oven. Continue roasting onions for 30 to 35 minutes until edges are golden brown, then remove. Roast tomatoes for 40 to 45 minutes until they are slightly browned, then remove.
  5. Combine ingredients: Transfer the roasted tomatoes, onions, and garlic into a large pot. Add the 5 cups of low-sodium vegetable broth and about three-quarters of the fresh basil. Season with salt and pepper to taste.
  6. Simmer soup: Bring the mixture to a boil over medium-high heat. Cover the pot and reduce the heat to low, letting it simmer for 20 minutes to develop flavors.
  7. Blend the soup: Use an immersion blender directly in the pot or blend in batches using a countertop blender. If using a blender, fill it only halfway, remove the center insert of the lid, and cover with a kitchen towel to allow steam to escape safely. Blend until smooth.
  8. Serve: Pour the warm soup into bowls and garnish with the remaining chopped fresh basil. Optionally serve alongside prepared grilled cheese sandwiches or grilled cheese croutons as described in the notes.

Notes

  • For grilled cheese or grilled cheese croutons: Use six slices of hearty sourdough, wheat, or white bread. Butter the outside of all slices with 1/2 tablespoon butter each. Sprinkle 1/2 cup (2 oz) shredded mozzarella or cheddar cheese on the non-buttered sides of three slices. Top with the remaining bread slices with buttered side up. Cook in a skillet over medium heat, reducing to medium-low as needed, until golden brown on the bottom. Flip and cook the other side until golden. Slice in half for sandwiches or cut into squares for croutons after slightly cooling.
  • You may optionally peel the tomatoes before roasting if you prefer a smoother texture.
  • For a creamier soup, add 1/2 to 1 cup of heavy cream after blending.
  • For added richness and flavor, serve with finely shredded Parmesan cheese.
  • The recipe yields about 9 cups of soup, serving 6 people.
  • Nutrition estimate excludes grilled cheese additions.

Nutrition

  • Serving Size: 1.5 cups
  • Calories: 140
  • Sugar: 9g
  • Sodium: 270mg
  • Fat: 7g
  • Saturated Fat: 1g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 18g
  • Fiber: 4g
  • Protein: 3g
  • Cholesterol: 0mg

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