Garlic Roasted Tomato Soup

This savory soup uses oven-roasted vegetables to create a deep, concentrated flavor profile. It is a simple way to utilize fresh garden produce for a comforting meal.

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List of ingredients

  • 3 pounds tomatoes – quartered for roasting.
  • 1 red pepper – seeded and roughly diced.
  • 1 small onion – sliced into strips.
  • 4-8 cloves garlic – peeled and kept whole.
  • 2 tablespoons olive oil – used for roasting and flavor.
  • 2 teaspoons Italian seasoning – a blend of dried herbs.
  • 1 teaspoon salt – to enhance natural flavors.
  • Black pepper – added to taste.
  • 1-2 cups broth OR evaporated milk – used to adjust the final thickness.
  • 1/4 cup heavy cream – optional for added richness.
  • 1 teaspoon sugar – helps balance the acidity of the tomatoes.
  • Handful fresh basil – for a bright, aromatic finish.

step-by-step instructions

  1. Prep: Preheat the oven to 420°F.
  2. Roast vegetables: Place the tomatoes, red pepper, onion and garlic on a rimmed baking sheet. Toss with olive oil, Italian seasoning, salt and pepper. Roast for 20-30 minutes, until softened, fragrant and starting to brown.
  3. Blend: Place the roasted vegetables in a blender and process until smooth. Always check manufacturer’s instructions for blending hot ingredients; for example, leave the lid open in the middle and cover with a tea towel to allow steam to escape.
  4. Finish soup: Add the blended vegetables to a large soup pot. Stir in enough broth or evaporated milk to reach your desired consistency. Add heavy cream, if you like, then season with sugar, fresh basil and additional salt/pepper to your taste. Warm through for a few minutes, then remove the basil before serving hot.

Optimizing Your Tomato Selection

Use Roma Tomatoes for Thicker Texture

Roma tomatoes are ideal for this recipe because they have a lower water content and more flesh. This results in a naturally thicker soup that requires less reduction time on the stove. They provide a consistent base that blends smoothly without becoming too watery.

Incorporate Heirloom Varieties for Complex Flavor

Heirloom tomatoes offer a wider range of flavor profiles, from very sweet to pleasantly tart. Mixing different heirloom colors can add depth and a more vibrant hue to the final dish. These tomatoes often have higher sugar content, which caramelizes beautifully during the roasting process.

Utilize Cherry Tomatoes for Added Sweetness

If you have a surplus of cherry or grape tomatoes, they can be used alongside the larger varieties. Because of their small size, they burst quickly in the oven and release a concentrated sweetness. This can reduce the amount of added sugar needed to balance the acidity.

Customizing Flavor and Texture

Replace Heavy Cream with Coconut Milk for a Vegan Option

For a dairy-free version, substitute the heavy cream and evaporated milk with full-fat canned coconut milk. This provides a similar creamy mouthfeel and richness while keeping the soup plant-based. The subtle coconut flavor pairs well with the roasted garlic and basil.

Add Smoked Paprika for a Charred Depth

Adding a half teaspoon of smoked paprika to the roasting vegetables introduces a subtle wood-fired taste. This mimics the flavor of a professional grill and complements the sweetness of the roasted red peppers. It adds a layer of complexity without overpowering the tomato base.

Adjust Garlic Quantities for Boldness

Depending on your preference, you can increase the garlic up to 10 cloves for a more pungent, savory profile. Ensure the garlic cloves are kept whole during roasting to prevent them from burning. Roasted garlic becomes mellow and sweet, providing a foundational savory note to the soup.

Swap White Sugar with Honey or Maple Syrup

If you prefer a more natural sweetener, a small amount of honey or maple syrup can replace the granulated sugar. These alternatives add a hint of floral or earthy sweetness that blends well with the Italian seasoning. Be sure to stir them in during the final warming stage to ensure they dissolve completely.

Essential Equipment and Safety

Use a Rimmed Baking Sheet to Prevent Spills

A rimmed baking sheet is critical because tomatoes release a significant amount of juice as they roast. The rims prevent olive oil and tomato liquids from dripping into the bottom of the oven. This avoids smoke and prevents potential grease fires during the high-heat roasting phase.

Utilize High-Power Blenders for Maximum Smoothness

A high-speed blender can completely emulsify the roasted vegetables, including the skins and seeds. This creates a professional, silky texture without the need for straining the soup through a sieve. It ensures that the garlic and onion are fully integrated into the liquid.

Manage Steam Venting When Blending Hot Liquids

Blending hot soup creates rapid steam expansion, which can force the lid off a blender. Always remove the center plastic piece of the lid and cover it with a folded kitchen towel. This allows the steam to escape safely while preventing splashes of hot soup from exiting the jar.

Storage and Preservation Methods

Refrigerating for Mid-Week Meals

Store the finished soup in airtight glass containers in the refrigerator for up to four days. To maintain the best quality, cool the soup to room temperature before sealing the container. This prevents condensation from forming, which can dilute the flavor of the soup.

Freezing for Long-Term Storage

This soup freezes exceptionally well for up to three months if stored in freezer-safe containers. If you used heavy cream, consider freezing the soup before adding the dairy, as cream can sometimes separate during the freezing process. Leave a small amount of headspace at the top of the container to allow for expansion.

Thawing and Reheating Procedures

Thaw frozen soup in the refrigerator overnight before reheating it on the stove. Heat it slowly over medium-low heat, stirring occasionally to ensure an even temperature. If the soup has thickened too much during freezing, stir in a tablespoon of broth or water to restore the original consistency.

Serving and Pairing Ideas

Pair with Toasted Sourdough Bread

The tanginess of sourdough bread complements the sweetness of roasted tomatoes perfectly. Toast slices with a bit of butter or olive oil and rub a raw garlic clove on the surface for extra flavor. This provides a crunchy contrast to the smooth texture of the soup.

Stir in Cooked Pasta or Grains

Transform the soup into a heartier meal by adding cooked ditalini pasta or pearled barley. Stir the cooked grains directly into the pot during the final warming stage. This adds substance and makes the dish more filling for a main course.

Serve with Grilled Lean Proteins

Grilled chicken breast or roasted tofu slices can be served on the side or sliced directly on top of the soup. The savory, charred edges of the protein pair well with the acidity of the tomato. This addition increases the protein content of the meal.

Garnish with Fresh Basil and Parmesan

Finish each bowl with a fresh basil leaf and a sprinkle of microbial-rennet Parmesan cheese. The fresh herb provides a peppery contrast to the cooked flavors, while the cheese adds a salty, umami finish. These garnishes elevate the presentation for guests.

Troubleshooting Common Issues

Neutralizing Excessive Acidity

If the soup tastes too tart or acidic, start by adding the suggested teaspoon of sugar. If the acidity persists, a tiny pinch of baking soda can be stirred in to neutralize the pH level. Add the baking soda in very small increments, as too much can alter the flavor of the soup.

Adjusting a Too-Thick Consistency

Depending on the size and water content of your tomatoes, the soup may turn out thicker than desired. Gradually whisk in vegetable broth or evaporated milk one quarter-cup at a time. Continue stirring over low heat until the soup reaches your preferred pourable consistency.

Preventing Garlic from Burning

If your garlic cloves are small, they may brown too quickly compared to the larger tomato quarters. To prevent burning, tuck the garlic cloves underneath the tomato pieces on the baking sheet. This shields them from direct heat while they soften in the tomato juices.

Fixing Grainy Texture After Blending

If the soup feels grainy, it is likely due to under-processed vegetable skins or seeds. Continue blending on high speed for an additional 60 seconds to further break down the fibers. For an absolutely seamless texture, pass the blended mixture through a fine-mesh strainer before adding it to the pot.

Frequently Asked Questions

Can I use canned tomatoes instead of fresh?

While this recipe is designed for fresh roasting, you can use canned whole peeled tomatoes. However, you will lose the roasted depth of flavor from the fresh vegetables. To compensate, sauté the onion, pepper, and garlic in a pan before adding the canned tomatoes and simmering.

Do I need to peel the tomatoes before roasting?

There is no need to peel the tomatoes for this recipe. The skins soften during roasting and are completely pulverized during the blending process. This allows you to retain all the nutrients and fiber found in the tomato skin.

How long does the soup stay fresh in the fridge?

The soup remains fresh and safe to eat for 3 to 5 days when stored in an airtight container. Ensure the container is kept at or below 40°F (4°C). Always reheat the soup to a simmer before serving to ensure food safety.

Can I make this recipe in a slow cooker?

A slow cooker cannot replicate the caramelization of roasting, but you can adapt the method. Sauté the vegetables in a pan first to get some brown color, then transfer them to the slow cooker with the broth. Cook on low for 6-8 hours before blending the mixture.

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Garlic Roasted Tomato Soup

Garlic Roasted Tomato Soup


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  • Author: alyssabennett
  • Total Time: 45 minutes
  • Yield: 4 servings 1x
  • Diet: General

Description

This Garlic Roasted Tomato Soup is easy to make with garden-fresh tomatoes.


Ingredients

Scale
  • 3 pounds tomatoes, quartered
  • 1 red pepper, seeded and roughly diced
  • 1 small onion, sliced
  • 48 cloves garlic, peeled
  • 2 tablespoons olive oil
  • 2 teaspoons Italian seasoning
  • 1 teaspoon salt
  • Black pepper to taste
  • 12 cups broth or evaporated milk
  • 1/4 cup heavy cream (optional)
  • 1 teaspoon sugar
  • Handful fresh basil

Instructions

  1. Prep: Preheat the oven to 420°F.
  2. Roast vegetables: Place the tomatoes, red pepper, onion and garlic on a rimmed baking sheet. Toss with olive oil, Italian seasoning, salt and pepper. Roast for 20-30 minutes, until softened, fragrant and starting to brown.
  3. Blend: Place the roasted vegetables in a blender and process until smooth.
  4. Finish soup: Add the blended vegetables to a large soup pot. Stir in enough broth or evaporated milk to reach your desired consistency. Add heavy cream, if you like, then season with sugar, fresh basil and additional salt/pepper to your taste. Warm through for a few minutes, then remove the basil before serving hot.

Notes

Can be frozen for up to 3 months. Serve with crusty bread or cooked pasta for a heartier meal.

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Lunch
  • Method: Roasting
  • Cuisine: Mediterranean

Nutrition

  • Serving Size: 1 serving
  • Calories: 234 kcal
  • Sugar: 13 g
  • Sodium: 660 mg
  • Fat: 14 g
  • Saturated Fat: 5 g
  • Unsaturated Fat: 9 g
  • Trans Fat: 0 g
  • Carbohydrates: 23 g
  • Fiber: 6 g
  • Protein: 8 g
  • Cholesterol: 20 mg

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