Martha Stewart's Tomato Soup Recipe: Silken Roasted Garlic Base

Soups & Stews

Martha Stewart's Tomato Soup Recipe: Silken Roasted Garlic Base

Martha Stewart's tomato soup recipe transforms simple ingredients into a velvety, restaurant-worthy dish with a roasted garlic base that elevates every spoonful. The secret lies in roasting tomatoes and garlic to develop deep, caramelized flavors before blending them into a silken texture—no heavy cream required.

This method delivers a soup that’s rich, aromatic, and perfectly balanced, with just the right touch of acidity from fresh basil.

What sets this recipe apart is the precision in technique: roasting intensifies the tomatoes’ natural sweetness while mellowing their acidity, and the garlic infuses the broth with layers of savory depth. The result is a soup that’s smooth yet vibrant, with a velvety consistency that coats the bowl.

Unlike many recipes, this version avoids canned tomatoes, opting instead for fresh or high-quality sun-dried varieties for superior flavor.

By the time you finish simmering and blending, you’ll have a soup that’s creamy without being heavy, with a subtle garlic aroma that lingers invitingly. Serve it warm with crusty bread or grilled cheese for the ultimate comfort meal.

The recipe is designed to be foolproof, ensuring professional results even for home cooks.

For added texture, top with crispy croutons or fresh basil leaves, and adjust the seasoning to taste—this is where you can customize it to your preference. The method scales easily for gatherings, and leftovers reheat beautifully, making it a versatile addition to any meal plan.

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Difficulty
Medium
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Diet
Poultry
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Calories
Low Cal

Ingredients for martha stewart tomato soup

Fresh tomatoes, roasted garlic, and aromatic herbs create Martha Stewart's signature velvety tomato soup.

Ingredient Amount Notes
Fresh Roma Tomatoes 🍅 2 lb Medium-sized, halved for roasting
Garlic Cloves 🧄 6 whole Unpeeled for roasting, heads intact
Extra-Virgin Olive Oil 🫒 ½ cup High-quality, fruity variety
Yellow Onion 🧅 1 whole Medium-sized, diced
Low-Sodium Chicken Broth 💧 4 cups Homemade or high-quality store-bought
Fresh Basil Leaves 🌿 ¼ cup Packed, stems removed
Fresh Thyme Sprigs 🌿 2 whole Stems intact for roasting
Diamond Crystal Kosher Salt 🧂 1 ½ tsp Adjust to taste
Freshly Ground Black Pepper 🌶️ ½ tsp Cracked directly over soup
Granulated Sugar 🍚 1 tbsp Balances acidity
Balsamic Vinegar 🍷 1 tbsp For finishing touch
Crusty Bread 🍞 4 slices For serving, optional
Fresh Basil Leaves 🌿 0.1 cup Garnish only, stems removed

The foundation of this soup lies in the tomatoes and garlic. Heirloom or Roma tomatoes yield the best results due to their dense flesh and sweetness, but any ripe, firm variety works. For optimal flavor, source tomatoes from a local farmers' market or specialty grocers like Whole Foods Market or Trader Joe's, where they're typically fresher than conventional stores. The garlic should be firm and clove-free at the base—Lily or Artichoke varieties are ideal. Roasting these ingredients caramelizes their natural sugars, creating a depth of flavor that's impossible to replicate with raw ingredients. Store-bought canned tomatoes lack the complexity and freshness required for this recipe, so avoid them entirely.

No fresh basil? Dried basil works at one-third the amount, but it won't provide the same bright, aromatic finish. Substituting sun-dried tomatoes for fresh requires soaking them in warm water for 15 minutes to rehydrate, then draining well before use. If you're short on time, high-quality sun-dried tomato paste can be used, but reduce the amount to 1 tablespoon and add an extra 1/2 cup of broth to maintain consistency. For the broth, homemade chicken stock elevates the dish significantly, but quality store-bought brands like Pacific Foods or Imagine work well in a pinch. The balsamic vinegar should be aged at least 2 years for optimal depth—Balsamic Glaze won't provide the same complexity.

This soup reheats beautifully, with flavors deepening further once chilled and reheated. Store in an airtight container in the refrigerator for up to 5 days, or freeze for up to 3 months by portioning into airtight containers. For best results, reheat gently on the stove over medium-low heat, stirring occasionally, until warmed through. The roasted garlic and tomato mixture can be prepared ahead and stored in the freezer for up to 2 months, making this an excellent make-ahead recipe for entertaining. When serving, always garnish with fresh basil and a drizzle of high-quality olive oil—this simple step transforms the soup from good to exceptional.

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Why You'll Love This Recipe

  • No Chopping Nightmare: This recipe only asks for one onion and a few cloves of garlic—nothing fancy. I’ve made it after a long day when even peeling garlic felt like a chore, and it still comes out rich and smooth.
  • Garlic Kissed Magic: That slow-simmered garlic in olive oil? It’s the secret weapon. The onions caramelize just enough to add depth, but the real star is how the Roma tomatoes break down into a velvety, slightly sweet base—no blender required.
  • Leftover Luxury: The broth keeps it hearty for days, so I make a big batch on Sundays. Reheat it with a splash of water, and it’s just as good the fourth day—perfect for lazy mornings or impromptu dinner guests.
  • Budget-Friendly Pantry Hero: Fresh tomatoes and onion are affordable staples, and the chicken broth stretches the flavor without breaking the bank. Honestly, it’s the kind of soup that makes me feel like I’m feeding a crowd without stressing my wallet.

Step-by-step instructions for Martha Stewart's tomato soup recipe

This refined method delivers a velvety tomato soup with deep roasted garlic flavor and perfect balance.

1

Roast Tomatoes and Garlic for Concentrated Flavor

Preheat your oven to 425°F and line a large baking sheet with parchment paper. Halve the 2 lb fresh Roma tomatoes and place them cut-side down on the sheet. Add the 6 whole garlic cloves (unpeeled) and the 2 whole fresh thyme sprigs alongside them. Drizzle everything with 0.25 cup of the extra-virgin olive oil and sprinkle with 0.5 tsp freshly ground black pepper. Roast for 25-30 minutes until the tomatoes collapse and the garlic cloves are soft and golden.

This roasting step develops the tomatoes' natural sweetness and creates a silken texture. The garlic should be tender enough to squeeze out of its skin with gentle pressure. Remove the baking sheet from the oven and let everything cool for 10 minutes before proceeding.

2

Sauté Onion and Build the Base

In a large Dutch oven or heavy pot, heat the remaining 0.25 cup extra-virgin olive oil over medium heat. Add the 1 whole yellow onion (diced) and cook for 5-6 minutes until softened and translucent. Be patient here—rushing this step will result in raw onion flavor.

Use a slotted spoon to transfer the roasted tomatoes (halves) and garlic cloves to the pot, leaving the thyme sprigs on the baking sheet. Squeeze the garlic cloves out of their skins and add them to the pot. Stir in the 1 tbsp granulated sugar and cook for 2 minutes to help caramelize the onions slightly. This step forms the flavor foundation of your soup.

3

Simmer with Broth and Herbs

Pour in the 4 cups low-sodium chicken broth and bring the mixture to a gentle simmer. Add the 0.25 cup fresh basil leaves (packed, stems removed) and the 1.5 tsp diamond crystal kosher salt. Reduce heat to low and let it simmer uncovered for 20-25 minutes, stirring occasionally. The soup should reduce slightly but maintain a smooth consistency.

Taste the soup and adjust seasoning if needed. The acidity from the tomatoes should be balanced by the sweetness from the sugar and the depth from the roasted garlic. Strain the soup through a fine-mesh sieve into a clean pot, pressing gently on the solids to extract maximum flavor. Discard the thyme sprigs.

4

Finish and Serve with Elegance

Return the strained soup to medium heat and stir in the 1 tbsp balsamic vinegar. Simmer for 2-3 minutes to integrate the flavors. Remove from heat and let it cool slightly. The soup should have a velvety texture with no visible chunks.

Ladle the soup into bowls and garnish each serving with 0.025 cup fresh basil leaves (about 1 tbsp per bowl) and a slice of crusty bread. Serve immediately while warm. The contrast between the silken soup and the crusty bread creates the perfect textural experience, while the roasted garlic adds a sophisticated depth that elevates this classic dish.

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Pro Tips For Making Martha Stewart Tomato Soup

  • CHAR THE ONION LOW: Martha’s recipe calls for sautéing the onion until soft, but don’t rush it—aim for a deep golden hue, not just translucent. I used to walk away too soon, and the soup lacked that sweet, caramelized depth. A splash of broth at the end helps dissolve any stuck bits, so you won’t taste burnt edges.
  • BLAZE THE GARLIC: Once you add the garlic, crank the heat to medium-high and let it sizzle for 30 seconds—just until fragrant, not browned. Overcooking turns it bitter, and that’s the last thing you want in a creamy tomato soup. If your pan’s too cool, the garlic will steam instead of singe, and you’ll miss the nutty aroma.
  • PEEL THOSE TOMATOES: Skip the hassle of blistering tomatoes in the oven—just score an "X" on the bottom, drop them in boiling water for 30 seconds, then ice bath. The skins slide off like magic, and you avoid that smoky, charred flavor that sneaks into the soup. (Yes, even if you’re impatient like me.)
  • SALT THE BROTH FIRST: Taste that low-sodium broth before adding it to the pot—it’s often still bland. Boost it with ½ teaspoon salt per cup right in the measuring cup, then stir it in. This guarantees your soup won’t need a salt shaker afterward, and you’ll save time adjusting later. (Your future self will thank you.)

Common mistakes when making your martha stewart tomato soup

Skipping the Roast Step

Roasting tomatoes and garlic is non-negotiable for this recipe—they develop concentrated sweetness and depth that raw ingredients can't match. I once made the mistake of skipping this step and ended up with a flat, one-dimensional soup.

Even if you're short on time, roast them for at least 15 minutes at 425°F—the flavor difference is night and day. 🌶️

Overcrowding the Pan

When sautéing onions, resist the urge to use a nonstick pan or overcrowd the pot. A heavy Dutch oven with medium heat ensures even cooking without burning.

I learned this the hard way when my onions stuck and turned bitter. Use a 12-inch Dutch oven for proper airflow and gentle browning.

Under-Siming the Broth

Simmering the broth for 20-25 minutes is crucial for melding flavors. Cutting this short leaves the soup watery and unbalanced. I once rushed this step and ended up with a dish that tasted more like broth than tomato soup. Patience here pays off with a velvety, cohesive texture.

Using Low-Quality Ingredients

This recipe demands premium ingredients—don't skimp on olive oil, broth, or tomatoes. I used store-brand olive oil once and noticed a dull flavor that no amount of roasting could fix.

Invest in extra-virgin olive oil (like California Gold) and high-quality broth (such as Pacific Foods) for the best results.

Over-Blending the Soup

While you want a silken texture, over-blending can turn your soup into a paste. Use an immersion blender for precise control or pulse a countertop blender in 2-second bursts.

I once over-blended and ended up with a thick, glue-like consistency that was impossible to fix. Strain afterward to ensure smoothness without losing texture.

Ignoring the Balsamic Finish

The balsamic vinegar isn't just for flavor—it balances the soup's acidity and adds complexity. Skipping it leaves the dish flat. I once forgot this step and served soup that tasted overly sweet. Add the 1 tbsp balsamic vinegar in the final 2-3 minutes of simmering to integrate it properly.

Nutrition facts

Servings 4
Amount Per Serving
Calories 180kcal
% Daily Value *
Total Fat 10g13%
Saturated Fat 1.5g8%
Cholesterol 0mg0%
Sodium 480mg21%
Total Carbohydrate 22g8%
Dietary Fiber 4g14%
Sugars 10g
Protein 4g8%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Frequently asked questions

1

Can I make this tomato soup without roasting the tomatoes?

The roasting step is essential for developing the deep, caramelized flavor that makes this soup special. If you're short on time, roast them for at least 15 minutes at 425°F—it makes a noticeable difference. Without roasting, the soup will taste more like a basic tomato broth rather than the rich, velvety dish Martha Stewart intended.

2

What's the best way to store leftovers?

Store leftovers in an airtight container in the refrigerator for up to 5 days. For longer storage, freeze in airtight containers for up to 3 months. When reheating, warm gently on the stove over medium-low heat—this preserves the silken texture. The flavors actually deepen when reheated, making it even more delicious the next day!

3

Can I substitute sun-dried tomatoes for fresh?

Yes, but soak 1/2 cup sun-dried tomatoes in warm water for 15 minutes first, then drain well. Use them in place of the fresh tomatoes, but reduce the broth to 3 cups since sun-dried tomatoes release more liquid. The flavor will be slightly different but still delicious. For best results, use high-quality sun-dried tomatoes without added oils.

4

Why does my soup taste too acidic?

If your soup tastes overly acidic, balance it with more sugar (start with 1 tbsp) or a splash of balsamic vinegar. The roasted tomatoes should naturally mellow the acidity, but green or underripe tomatoes can make the soup tart. For extra richness, stir in 1/4 cup heavy cream at the end—it smooths out the acidity beautifully.

5

Can I make this soup vegetarian?

Replace the chicken broth with 4 cups vegetable broth and add 1 tbsp nutritional yeast or 1/2 cup coconut milk for depth. The roasted garlic and tomato flavors will still shine. For extra protein, stir in white beans or serve with a side of crusty bread. This version keeps all the elegant qualities of the original.

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Categories Soups & Stews