Roasted Tomato Basil Soup

Featured in: Everyday Meal Ideas

This restaurant-style Italian soup transforms simple ingredients into pure comfort. Oven-roasted tomatoes, sweet onions, and garlic caramelize to perfection, then blend with fresh basil and vegetable broth into a silky, aromatic bowl. Ready in just 1 hour with 15 minutes of prep, this vegetarian and gluten-free dish serves 4 and offers optional cream for richness. Perfect for cozy dinners or elegant entertaining.

Updated on Thu, 29 Jan 2026 18:18:34 GMT
Bright red roasted tomatoes, onions, and garlic on a baking sheet ready for the Roasted Tomato Basil Soup. Save
Bright red roasted tomatoes, onions, and garlic on a baking sheet ready for the Roasted Tomato Basil Soup. | claroamezruy.com

A luxurious, restaurant-style Italian soup featuring oven-roasted tomatoes, sweet onions, garlic, and fresh basil, blended into a silky, aromatic bowl of comfort. This Roasted Tomato Basil Soup is the ultimate recipe for those seeking a deep, concentrated flavor that only the oven can provide.

Bright red roasted tomatoes, onions, and garlic on a baking sheet ready for the Roasted Tomato Basil Soup. Save
Bright red roasted tomatoes, onions, and garlic on a baking sheet ready for the Roasted Tomato Basil Soup. | claroamezruy.com

The process begins by roasting ripe tomatoes, quartered onions, and whole garlic cloves until they are tender and slightly charred. This essential step transforms basic ingredients into a rich and fragrant foundation for the perfect soup.

Ingredients

  • Roasted Vegetables: 1.5 kg (3.3 lbs) ripe tomatoes (halved), 1 large yellow onion (quartered), 6 cloves garlic (peeled), 2 tbsp extra-virgin olive oil, 1 tsp kosher salt, 1/2 tsp freshly ground black pepper.
  • Soup Base: 2 cups (480 ml) vegetable broth (low sodium), 1/2 cup (15 g) fresh basil leaves (packed), 1 tbsp unsalted butter (optional), 1 tsp sugar (optional).
  • Garnish: 1/4 cup (60 ml) heavy cream or crème fraîche (optional), fresh basil leaves, croutons or toasted bread (optional).
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Instructions

Step 1
Preheat your oven to 220°C (425°F). Line a baking sheet with parchment paper.
Step 2
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 3
Roast for 35–40 minutes, until the tomatoes are caramelized and the onions are tender.
Step 4
Transfer the roasted vegetables and any juices to a large pot. Add vegetable broth and bring to a gentle simmer over medium heat.
Step 5
Stir in the fresh basil leaves, butter, and sugar (if using). Simmer for 5 minutes to combine flavors.
Step 6
Use an immersion blender to puree the soup until smooth. Alternatively, blend in batches in a countertop blender, then return to the pot.
Step 7
Taste and adjust seasoning as needed. For a silkier texture, strain the soup through a fine sieve.
Step 8
Serve hot, drizzled with cream and garnished with fresh basil leaves and croutons or toasted bread if desired.

Zusatztipps für die Zubereitung

For an extra depth of flavor, add a splash of balsamic vinegar or a teaspoon of tomato paste before blending. If you want a perfectly smooth, restaurant-quality finish, don't skip straining the soup through a fine sieve to remove any remaining skin or seeds.

Varianten und Anpassungen

To make this soup vegan, simply omit the butter and heavy cream or use plant-based alternatives. For those who enjoy a bit of spice, add a pinch of red pepper flakes during the simmering stage to provide a gentle, warming heat.

Serviervorschläge

This soup pairs exceptionally well with a crisp Sauvignon Blanc or a rustic Italian white wine. Serve it in a warm bowl with a side of crusty toasted bread or golden croutons to soak up every drop of the rich broth.

A steaming bowl of rich red Roasted Tomato Basil Soup topped with fresh basil and a drizzle of cream. Save
A steaming bowl of rich red Roasted Tomato Basil Soup topped with fresh basil and a drizzle of cream. | claroamezruy.com

Whether you are serving it as an elegant starter or a cozy main course, this Roasted Tomato Basil Soup brings the heart of Italian cooking straight to your table. Enjoy the warmth and aroma of this timeless classic.

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Recipe FAQs

Can I make this soup vegan?

Yes, simply omit the butter and cream or substitute with plant-based alternatives like olive oil and coconut cream for a fully vegan version.

How do I store leftover soup?

Store in an airtight container in the refrigerator for up to 4 days, or freeze for up to 3 months. Reheat gently on the stovetop, adding a splash of broth if needed.

Can I use canned tomatoes instead of fresh?

While fresh tomatoes provide the best roasted flavor, you can use 2 cans (800g each) of whole peeled tomatoes. Drain slightly and roast with the onions and garlic for caramelization.

What can I serve with this soup?

Pair with crusty bread, grilled cheese sandwiches, or a fresh green salad. It also works beautifully as a starter before pasta or risotto.

How can I make the soup creamier without dairy?

Add soaked cashews before blending, use coconut cream, or stir in a drizzle of high-quality olive oil for richness and silky texture.

Why add sugar to the soup?

The sugar balances the natural acidity of tomatoes, creating a more rounded flavor. Adjust to taste depending on the sweetness of your tomatoes.

Roasted Tomato Basil Soup

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

Prep Time
15 min
Time to Cook
45 min
Total Duration
60 min
Created by Elaine Schwartz


Skill Level Easy

Cuisine Italian

Portion Size 4 Serves

Diet Preferences Meat-Free, No Gluten

What You Need

Roasted Vegetables

01 3.3 pounds 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
04 1 teaspoon granulated sugar, optional

Garnish

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

How To Make

Step 01

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

Step 02

Season vegetables for roasting: Arrange halved tomatoes, onion quarters, and garlic cloves on the prepared baking sheet. Drizzle with olive oil and sprinkle with salt and pepper. Toss all ingredients to coat evenly.

Step 03

Roast vegetables until caramelized: Roast for 35 to 40 minutes, until tomatoes are caramelized and onions are tender.

Step 04

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

Step 05

Infuse with basil and aromatics: Stir in fresh basil leaves, butter if using, and sugar if desired. Simmer for 5 minutes to allow flavors to meld.

Step 06

Blend soup to smooth consistency: Use an immersion blender to purée the soup until completely smooth. Alternatively, blend in batches using a countertop blender and return to the pot.

Step 07

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

Step 08

Plate and garnish: Serve soup hot. Drizzle with cream and garnish with fresh basil leaves, croutons, or toasted bread if desired.

Tools Needed

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

Allergy Info

Always look over ingredients for allergens. When unsure, ask your healthcare provider.
  • Contains dairy from butter and cream; substitute with plant-based alternatives for dairy-free or vegan preparation
  • Gluten may be present if served with croutons or bread; use gluten-free alternatives if needed
  • Always verify ingredient labels for potential hidden allergens

Per Serving Nutrition

These nutrition details are for reference only—talk to your doctor for personal advice.
  • Kcal: 170
  • Fats: 8 g
  • Carbohydrates: 22 g
  • Proteins: 4 g