Roasted Tomato Basil Soup

Featured in: Home Kitchen Staples

This luxurious Italian classic transforms humble tomatoes into a silky, aromatic bowl through oven roasting. The process intensifies natural sweetness while creating depth through caramelization. Fresh basil adds bright herbal notes that balance the rich, concentrated tomato flavor. Perfect for cozy dinners or elegant entertaining, this versatile soup adapts beautifully to dietary preferences while maintaining its restaurant-quality appeal.

Updated on Wed, 28 Jan 2026 15:12:00 GMT
A close-up of homemade Roasted Tomato Basil Soup in a rustic bowl, garnished with fresh basil and a swirl of cream. Save
A close-up of homemade Roasted Tomato Basil Soup in a rustic bowl, garnished with fresh basil and a swirl of cream. | cozymsemen.com

The scent of caramelizing tomatoes filled my kitchen one rainy Sunday afternoon, transforming what began as a simple soup experiment into a lifelong love affair. I'd picked up a basket of plump tomatoes from the farmers market that morning, their skins still warm from the sun despite the drizzle outside. Standing over the roasting pan, watching those tomatoes collapse and intensify, I knew this soup would be different from any I'd made before. The deep, concentrated flavor that roasting brings to tomatoes creates something almost magical in the bowl.

Last autumn, I served this soup at an impromptu dinner when friends showed up unexpectedly after we all got caught in a downpour. We huddled around my tiny table, steam rising from our bowls, the rain tapping against the windows. Nobody spoke for the first few minutes, just appreciative murmurs and the clinking of spoons against bowls. Even my friend who claimed to dislike tomato soup asked for the recipe before leaving.

Ingredients

  • Ripe Tomatoes: The ripeness matters tremendously here, as underripe tomatoes will never develop that sweet intensity no matter how long you roast them.
  • Fresh Basil: I learned from an Italian grandmother to add the basil right before blending rather than cooking it too long, preserving its bright, aromatic qualities.
  • Yellow Onion: Roasting transforms the onion from sharp to sweet, providing a mellow foundation that supports rather than competes with the tomatoes.
  • Garlic Cloves: When roasted, garlic loses its bite and develops a nutty sweetness that enriches the soup without overwhelming it.
  • Extra-Virgin Olive Oil: Use your good bottle here, as its flavor will shine through in the final product.

Instructions

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Prepare Your Tomatoes:
Halve those beautiful tomatoes and arrange them cut-side up on your baking sheet alongside the quartered onion and whole garlic cloves. The way they roast unevenly is actually perfect, with some edges getting more caramelized than others.
Roast Until Caramelized:
Your kitchen will fill with the most intoxicating aroma around the 25-minute mark, but resist the urge to pull them out early. Those extra 10-15 minutes are when the magic really happens.
Combine and Simmer:
When transferring those roasted vegetables to your pot, make sure to scrape in all those caramelized bits from the baking sheet. Those dark, sticky spots contain concentrated flavor that transforms your soup.
Blend to Perfection:
I find an immersion blender gives you more control over the final texture than a countertop blender. Work in pulses rather than one continuous blend, checking frequently until you reach your desired consistency.
Final Touches:
The moment of adding cream is like watching watercolor paint swirl through water, creating beautiful patterns before you stir it in. A light hand with the cream preserves the vibrant tomato flavor while adding just enough richness.
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Silky roasted tomato basil soup served with a crusty bread slice for dipping, steaming gently on a wooden table. Save
Silky roasted tomato basil soup served with a crusty bread slice for dipping, steaming gently on a wooden table. | cozymsemen.com

During one particularly harsh winter, I found myself making this soup almost weekly. The bright flavors became a kind of therapy against the endless gray days. I started keeping jars of it in my freezer, labeled with the date and little smiley faces. On especially difficult days, pulling out one of those jars felt like accessing a bit of stored sunshine, a reminder that warmth always returns eventually.

Make It Your Own

While the recipe stands beautifully on its own, Ive discovered countless ways to adapt it over the years. Sometimes I add a splash of balsamic vinegar right at the end, which introduces a subtle sweetness and complexity. During summer months, I might toss in a roasted red pepper with the tomatoes. In cooler weather, a pinch of smoked paprika adds warmth and depth that complements the roasted flavors perfectly.

Serving Suggestions

Theres something wonderfully versatile about this soup that allows it to shift from casual lunch to elegant dinner. For a simple meal, I serve it with grilled cheese sandwiches made with sharp cheddar and a thin smear of whole grain mustard. For dinner parties, I elevate it by serving in warmed bowls with a swirl of basil oil and homemade parmesan crisps perched on the edge. The contrast of silky soup against crispy cheese never fails to impress.

Storage and Reheating

The flavor of this soup actually improves after a day or two in the refrigerator as the ingredients have time to meld further. When freezing, I leave out the cream and add it fresh when reheating for the best texture and appearance.

  • Refrigerate in airtight containers for up to 4 days, allowing the flavors to deepen over time.
  • Freeze without cream for up to 3 months in freezer-safe containers, leaving an inch of headspace for expansion.
  • Reheat gently on the stovetop rather than microwave for the most even warming and to prevent scorching the bottom.
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Rich, velvety Roasted Tomato Basil Soup topped with fresh basil leaves, ready to be enjoyed on a cozy evening. Save
Rich, velvety Roasted Tomato Basil Soup topped with fresh basil leaves, ready to be enjoyed on a cozy evening. | cozymsemen.com

This roasted tomato basil soup has become more than just a recipe in my collection, its become a remedy for cold days, busy weeks, and times when I need to remember that simple ingredients can create profound comfort. I hope it brings the same warmth to your table and heart.

Recipe FAQs

How do I achieve the smoothest texture?

Use an immersion blender directly in the pot for convenience, or process in batches using a countertop blender. For ultimate silkiness, pass the pureed soup through a fine-mesh sieve to remove any remaining fibers or seeds.

Can I make this ahead of time?

Absolutely. This soup actually develops deeper flavors when made ahead. Prepare up to 3 days in advance and refrigerate. Reheat gently over medium-low heat, stirring occasionally. Add a splash of broth if it thickens too much upon standing.

What tomatoes work best for roasting?

Roma, San Marzano, or vine-ripened tomatoes provide excellent results. Choose tomatoes that yield slightly to gentle pressure and feel heavy for their size. Avoid underripe tomatoes, as they won't develop the same sweetness during roasting.

How can I add more protein?

Stir in cannellini or Great Northern beans during the final simmer for plant-based protein. Alternatively, serve alongside grilled chicken or pair with a protein-rich salad. For a creamy protein boost, dollop with Greek yogurt instead of heavy cream.

What's the best way to store leftovers?

Cool completely before transferring to an airtight container. Refrigerate for up to 4 days or freeze for up to 3 months. When freezing, leave room for expansion as liquids expand. Thaw overnight in the refrigerator before reheating gently.

Roasted Tomato Basil Soup

Luxurious Italian-style soup featuring oven-roasted tomatoes, sweet onions, garlic, and fresh basil blended into silky perfection.

Prep Time
15 min
Time to Cook
45 min
Total Duration
60 min
By Cozy Msemen Daniel Crawford


Skill Level Easy

Cuisine Italian

Output 4 Portions

Diet Info Meat-Free, No Gluten

What You Need

Roasted Vegetables

01 3.3 lbs ripe tomatoes, halved
02 1 large yellow onion, quartered
03 6 cloves garlic, peeled
04 2 tablespoons extra-virgin olive oil
05 1 teaspoon kosher salt
06 1/2 teaspoon freshly ground black pepper

Soup Base

01 2 cups low-sodium vegetable broth
02 1/2 cup fresh basil leaves, packed
03 1 tablespoon unsalted butter, optional for richness
04 1 teaspoon sugar, optional to balance acidity

Garnish

01 1/4 cup heavy cream or crème fraîche, optional
02 Fresh basil leaves for garnish
03 Croutons or toasted bread, optional

How-To Steps

Step 01

Preheat and Prepare: Preheat your oven to 425°F. Line a baking sheet with parchment paper.

Step 02

Arrange and Season Vegetables: Arrange the halved tomatoes, onion quarters, and garlic cloves on the baking sheet. Drizzle with olive oil and sprinkle with salt and pepper. Toss to coat evenly.

Step 03

Roast Vegetables: Roast for 35 to 40 minutes until the tomatoes are caramelized and the onions are tender.

Step 04

Combine Roasted Vegetables with Broth: Transfer the roasted vegetables and any juices to a large pot. Add vegetable broth and bring to a gentle simmer over medium heat.

Step 05

Infuse Basil and Seasonings: Stir in the fresh basil leaves, butter, and sugar if using. Simmer for 5 minutes to combine flavors.

Step 06

Blend Soup: Use an immersion blender to puree the soup until smooth. Alternatively, blend in batches in a countertop blender, then return to the pot.

Step 07

Adjust Seasoning and Texture: Taste and adjust seasoning as needed. For a silkier texture, strain the soup through a fine sieve.

Step 08

Serve: Serve hot, drizzled with cream and garnished with fresh basil leaves and croutons or toasted bread if desired.

Tools Needed

  • Baking sheet
  • Parchment paper
  • Large pot
  • Immersion blender or countertop blender
  • Fine sieve

Allergy Details

Please check every ingredient for allergens and reach out to your healthcare provider with concerns.
  • Contains dairy from butter and cream; omit or substitute with plant-based alternatives for dairy-free or vegan version
  • Gluten may be present if served with croutons or bread; use gluten-free bread if needed
  • Always verify ingredient labels for hidden allergens

Nutrition Info (per serving)

Nutritional info is an estimate. Cozy Msemen recommends asking a professional about your needs.
  • Calories: 170
  • Fats: 8 g
  • Carbohydrates: 22 g
  • Proteins: 4 g