Oh, you know those days when all you want is a big, warm hug from a bowl? That’s exactly what homemade soup should feel like. Forget those thin, insipid canned versions—we are doing this right! I’m going tell you exactly how to make the best Roasted Tomato Basil Soup you have ever tasted. My secret? We cook smart, not hard. While some folks just boil tomatoes, I insist on roasting everything first. Trust me on this one; roasting caramelizes all the natural sugars in those tomatoes and onions, giving you a depth of flavor that stovetop cooking just can’t touch. This simple technique transforms ordinary vegetables into the richest, most flavorful soup base possible. It’s truly kitchen magic!
Why This Roasted Tomato Basil Soup Recipe Stands Out
I know you can grab a can off the shelf, but honestly, why would you when this is so easy? This method isn’t complicated; it just requires a little oven time. I promise, this Roasted Tomato Basil Soup is worth the tiny bit of extra effort. It really does make all the difference.
Flavor Depth from Roasting
The simple act of roasting is what separates the good soups from the great ones. When you pop those tomatoes and onions in the oven, they start to caramelize a bit—it’s like nature’s way of adding brown sugar flavor. That char intensifies the natural sweetness and deepens the whole profile of the final Roasted Tomato Basil Soup. You get this incredible rich background note.
Simplicity of Preparation
Wow, this is where the magic happens without stressing you out! Active time is almost nothing. You’re only looking at about 15 minutes of prep time to chop and toss everything onto the sheet pan. Then, the oven handles the heavy lifting for about 40 minutes of cook time while you relax. It’s the perfect weeknight luxury without the fuss!
Gathering Ingredients for Your Roasted Tomato Basil Soup
Okay, you can’t make gold without the right ore, right? Getting your ingredients lined up before the oven even starts warming is Step One to success. I’m very particular about the quality here, especially for the tomatoes, because they are the star of our show. Don’t skimp on having everything measured out and ready to go.
We want that deep, sweet flavor in our Roasted Tomato Basil Soup, and it starts with fresh produce!
Produce and Aromatics
- Tomatoes: Get the best you can find! You need 3 pounds of ripe tomatoes, and they have to be halved. Not sliced, not cherry tomatoes—big halves!
- Onion: One large yellow onion goes in, cut into quarters. Don’t worry about carefully dicing it; the oven does the hard work.
- Garlic: Just 4 cloves, peeled. The roasting mellows the sharpness perfectly.
- Basil: This is crucial! You need a full 1/2 cup of fresh basil leaves, packed tightly into your measuring cup.
Liquids and Seasonings for Roasted Tomato Basil Soup
These are the supporting actors that make the main performance shine. Remember, seasoning during the roasting stage locks in so much flavor!
- Olive Oil: We need 1/4 cup of good olive oil to help everything brown beautifully.
- Seasoning: 1 teaspoon of salt and 1/2 teaspoon of black pepper. Keep it simple here; we taste it later.
- Broth: 4 cups of vegetable broth—this is our liquid base for the soup.
- Cream: And finally, 1/4 cup of heavy cream. This is totally optional, but it gives the final Roasted Tomato Basil Soup that amazing creamy texture. If you skip it, you’re still getting an incredible soup!
Step-by-Step Instructions for Perfect Roasted Tomato Basil Soup
This is the fun part, where your kitchen starts smelling heavenly! Because we roasted everything first, the soup practically makes itself from here. Just follow my steps exactly, especially around that blending stage—do *not* skip the cooling time, or you’ll have a soup explosion! If you’re curious about other techniques, check out my thoughts over on homemade wonton soup for another example of building flavor in layers.
Roasting the Vegetables
First things first, crank up that heat! You need to preheat your oven to 400 degrees Fahrenheit, or about 200 degrees Celsius. Take those gorgeous halved tomatoes, the onion quarters, and plain, peeled garlic cloves and pile them onto your biggest baking sheet. Drizzle everything liberally with that olive oil, and make sure they get coated in the salt and pepper we measured out earlier. Pop that sheet pan in the oven for 30 to 35 minutes. You are waiting for perfectly softened tomatoes and just a little bit of charring on the edges. That char is the flavor gold!
Simmering the Roasted Tomato Basil Soup Base
Once they’re roasted, pull them out—careful, that pan is hot! Let them cool down a minute so you don’t burn yourself. Now, transfer ALL those roasted veggies, and crucially, any juices that collected on the pan, right into your big stockpot or Dutch oven. Add in that beautiful half-cup of fresh basil leaves and pour in your 4 cups of vegetable broth. Set the pot over medium heat and just bring it slowly up to a gentle simmer. Don’t let it truly boil hard yet!
Blending and Finishing the Roasted Tomato Basil Soup
Time to make it smooth! You can use an immersion blender right in the pot—that’s my preference because cleanup is easier. If you use a regular blender, remember to only fill it halfway and work in small batches, holding that lid down tight! Blend until it’s silky. Return your glorious **Roasted Tomato Basil Soup** back to the pot if you used a regular blender. If you decided to add that heavy cream, stir it in now. Give it a final gentle warm-up—just heat it through, don’t let it boil once the cream is in. Taste it—does it need more salt? Now’s the time to fix it!

Tips for Making the Best Roasted Tomato Basil Soup
You followed the steps, but now you want to make sure it’s absolutely perfect, right? That’s what I love about this **Roasted Tomato Basil Soup**—it’s so adaptable! I’ve learned a few tricks over the years that elevate it from great to absolutely unforgettable. These little tweaks make sure you get exactly the texture and flavor you’re hoping for, even if things happen to go sideways in the kitchen. Don’t forget, even if you’re in the mood for something spicier later, you can always customize this base—maybe check out some ideas for homemade chili garlic sauce for dipping!
Achieving Desired Thickness
So, you blended it up, and you think, “Hmm, I like this soup thick enough to stand a spoon up in!” I totally get that. If you find your **Roasted Tomato Basil Soup** is a little thinner than you’d like after the blending stage, here is your fix. You need to let it simmer uncovered in the pot for about an extra 10 minutes before you stir in any cream. By doing this, you let a little steam escape, concentrating those tomato flavors and thickening the body naturally. Just watch it so it doesn’t splash!
Basil Substitution Note
Fresh basil is king, we established that, but life happens, and sometimes your little basil plant totally bolts on you, or you just didn’t have enough packed leaves. Don’t panic! If you have to substitute, you can definitely use dried basil. Just swap out that half-cup of fresh stuff for 1 teaspoon of dried basil. The key here is *when* you add it: toss the dried herb in during that simmering stage we talked about earlier. This gives it enough time to rehydrate and release its flavor without turning bitter before you blend it.
Serving Suggestions for Roasted Tomato Basil Soup
Wow, your kitchen smells incredible, doesn’t it? Now that you have this deeply flavorful soup ready to go, it’s time for the best—the presentation! We’ve put in the work to make this soup luxurious, so we should treat it right when it comes to serving. It really deserves to be enjoyed in the coziest way possible. You can easily dress this up or down depending on your mood!
Classic Pairings
Honestly, what is tomato soup without its best friend? You absolutely have to serve this piping hot alongside a perfectly made grilled cheese sandwich. I mean, that crispy, buttery bread dipped into the rich, savory tomato base—it’s perfection! If you’re feeling adventurous, I have a fantastic recipe for homemade garlic bread grilled cheese that takes this pairing to a whole new level. If sandwiches aren’t your thing, a thick slab of crusty sourdough or French bread is also a must for soaking up every last drop of that liquid gold.
Garnishes
Even simple soups look gourmet with just a quick top layer of garnish! Don’t just ladle it into the bowl and walk away! Try taking a clean spoon, dipping it into a little extra good olive oil, and swirling a thin circle right on top of the soup’s surface for a professional look. Then, hit it with a generous sprinkle of fresh cracked black pepper—it adds a tiny bit of spice that wakes everything up. And, of course, tearing up a few extra small basil leaves right before serving adds a burst of fresh, green color and aroma that just screams homemade goodness.

Storage and Reheating Roasted Tomato Basil Soup
Nobody wants to eat the whole batch of this amazing **Roasted Tomato Basil Soup** in one sitting—though I wouldn’t judge you if you tried! Knowing how to store leftovers properly makes all the difference, and it’s so comforting knowing you have future bowls of deliciousness waiting in the fridge or freezer. Proper storage keeps that roasted flavor locked in until you’re ready for another helping.
Refrigeration Details
If you’re planning to eat the leftovers within a few days, the fridge is your best friend. The most important rule here, which I learned the hard way (hello, soup explosion on the ceiling!), is that you must let the soup cool down completely before you put a lid on it. Once it’s just warm to the touch, transfer your **Roasted Tomato Basil Soup** into an airtight container. I like using glass jars because you can see how much is left! Stored this way, you should have about 4 to 5 days before the flavor starts to dip.
Freezing Instructions
This soup freezes like a dream, which is fantastic for busy weeks! If you know you won’t get to it in 5 days, let’s freeze it. Here’s a pro-tip: if you used the heavy cream, try to freeze the soup *before* you stir the cream in. Dairy-based soups sometimes change texture slightly when they thaw, getting a little grainier. If you can, freeze the creamy soup and the non-creamy soup separately. Always freeze it in individual portions—like mason jars—leaving about an inch of headspace at the top because liquids expand! It’ll keep perfectly for about three months.

Frequently Asked Questions About Roasted Tomato Basil Soup
If you’ve made it this far, you’re practically a professional soup maker! But I know when a recipe is this good, questions always pop up about adapting it or troubleshooting. That’s totally normal! I’ve gathered the most common things people ask me when they are whipping up a batch of this amazing **Roasted Tomato Basil Soup**.
Can I make this soup vegan?
Absolutely, you totally can! Since this recipe starts with vegetables and broth, it’s vegetarian already. The only animal product is that optional heavy cream we stir in at the end for richness. To make it fully vegan, just skip the cream entirely! Or, if you really want that lush texture, swap it out for a creamy coconut milk or a good quality unsweetened cashew cream. It tastes fantastic either way!
What type of tomatoes work best?
Oh, the tomato question! This is key because we are roasting them, so we need them to break down nicely and have great natural flavor. Forget the pale, watery ones! You want flavorful, ripe tomatoes. I always prefer Roma tomatoes because they are meaty and don’t have too many seeds, but any vine-ripened tomato that smells sweet at the grocery store will give your **Roasted Tomato Basil Soup** the best natural sugars to work with when roasting.
Why are my roasted tomatoes not sweet enough?
If you roast everything and you’re still not getting that deep, sweet tomato flavor, there are usually two reasons. First, make sure your tomatoes were actually ripe when they went into the oven—underripe tomatoes just won’t caramelize well. Second, don’t be afraid of the char! You need those edges to get dark brown, almost black in spots. That charring process is what develops those sweet, almost smoky notes that make this whole **Roasted Tomato Basil Soup** recipe sing. Don’t pull them too early!
If you want to explore some other ways to get that rich, mouth-coating feeling, you should take a look at my thoughts on creamy deliciousness soup recipes sometime!
Nutritional Estimate for Roasted Tomato Basil Soup
You know, I always tell people that making something from scratch means you know exactly what’s going in, which is a huge win! But since we are roasting vegetables, using olive oil, and adding that optional cream, it’s good to have a ballpark idea of what’s in that beautiful bowl of soup. These numbers are just estimates, of course, and they can swing depending on how much oil you drizzle on your veggies or if you skip that heavy cream we talked about. This estimate is based on one generous serving size—about 1.5 cups—of the soup base.
- Calories: Roughly 180 calories per serving. That’s fantastic for such a satisfying meal!
- Total Fat: Around 10 grams. Remember, some of that healthy fat comes from that lovely olive oil we use for roasting.
- Saturated Fat: About 3 grams, mostly if you include that optional cream. Skip the cream, and this number dips lower!
- Carbohydrates: We are looking at about 18 grams, which is mostly coming from the natural sugars in those roasted tomatoes and onions.
- Fiber: You get a nice little boost here, about 5 grams, thanks to all that vegetable goodness!
- Protein: A modest 4 grams per bowl.
- Sodium: About 450 mg, which is why I always tell you to taste before adding extra salt at the end!
See? So much goodness for so few calories! It definitely proves that comfort food can absolutely fit into a healthy eating plan when you are making it yourself.
Share Your Experience Making This Soup
Okay, now that your counter is sparkling clean and you’ve had a gorgeous bowl of that homemade Roasted Tomato Basil Soup, I really, truly want to hear about it!
This recipe has been my go-to for decades, and I get such a kick out of hearing how it turns out for everyone else. Did you manage to get that perfect char on your tomatoes? Did the kids actually eat it? Tell me everything!
Please drop a rating below—even telling me you made it is a huge compliment to me! If you made any secret substitutions or additions that you think I should try next time, let me know in the comments section underneath. Maybe you paired it with something amazing, like that yummy homemade ketchup instead of a standard grilled cheese?
We are building a little community of home cooks here, and sharing what works (and what doesn’t!) is how we all get better. Thank you from the bottom of my heart for trusting me with your dinner tonight!
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Roasted Tomato Basil Soup
- Total Time: 55 min
- Yield: 6 servings 1x
- Diet: Vegetarian
Description
A simple recipe for rich tomato soup made by roasting tomatoes and basil before blending.
Ingredients
- 3 lbs ripe tomatoes, halved
- 1 large yellow onion, quartered
- 4 cloves garlic, peeled
- 1/4 cup olive oil
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 cup fresh basil leaves, packed
- 4 cups vegetable broth
- 1/4 cup heavy cream (optional)
Instructions
- Preheat your oven to 400 degrees Fahrenheit (200 degrees Celsius).
- Toss the halved tomatoes, onion quarters, and garlic cloves with olive oil, salt, and pepper on a large baking sheet.
- Roast for 30 to 35 minutes, until the tomatoes are softened and slightly charred.
- Remove from the oven and let cool slightly.
- Transfer the roasted vegetables and any pan juices to a large pot or Dutch oven.
- Add the fresh basil and vegetable broth to the pot.
- Bring the mixture to a simmer over medium heat.
- Use an immersion blender or carefully transfer the soup in batches to a regular blender and blend until smooth.
- Return the soup to the pot. Stir in the heavy cream, if using.
- Heat through gently without boiling. Adjust seasoning if needed.
Notes
- For a thicker soup, simmer uncovered for an extra 10 minutes before blending.
- If you do not have fresh basil, use 1 teaspoon of dried basil added during the simmering stage.
- Serve hot with grilled cheese sandwiches or crusty bread.
- Prep Time: 15 min
- Cook Time: 40 min
- Category: Soup
- Method: Roasting and Simmering
- Cuisine: American
Nutrition
- Serving Size: 1.5 cups
- Calories: 180
- Sugar: 12
- Sodium: 450
- Fat: 10
- Saturated Fat: 3
- Unsaturated Fat: 7
- Trans Fat: 0
- Carbohydrates: 18
- Fiber: 5
- Protein: 4
- Cholesterol: 10
Keywords: roasted tomato soup, tomato basil soup, homemade soup, vegetable soup, easy tomato soup

