That first cool evening in September when summer finally loosens its grip I always want something warm in a bowl. Copycat Cosi Tomato Basil Bisque is exactly that: silky, rich, deeply savory, with that unmistakable basil brightness that made the original so hard to forget.
Fall of 2019, I started making this on repeat the moment back-to-school chaos hit. Decision fatigue was real, and I needed dinner to feel like a treat without any fuss. The secret is letting the tomatoes roast just enough to concentrate the flavor then blending until it’s impossibly smooth. After a decade of testing soups like this, that one step is what separates good from genuinely great.
PrintCopycat Cosi Tomato Basil Bisque Warm Comforting Recipe You Need to Make Now
Enjoy the comforting flavors of Copycat Cosi Tomato Basil Bisque, perfect for an easy dinner or weeknight meal. This creamy tomato bisque is packed with fresh basil and hidden vegetables, making it a favorite family dinner and homemade tomato basil soup.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Total Time: 40 minutes
- Yield: 8 servings 1x
- Category: Appetizer, Main Course, Soup
- Method: Stovetop
- Cuisine: American
- Diet: Standard
Ingredients
- 1 Tablespoon olive oil
- 2 14.5 ounce cans diced tomatoes with the juice
- 2 carrots finely diced about 1 cup
- 1 small onion finely diced about 1 cup
- 3 ribs celery finely diced about 1 cup
- 2 Tablespoons tomato paste
- 4 cups low-sodium chicken broth
- 1 teaspoon Dried oregano
- 1 1/2 teaspoons dried basil leaves
- ½ cup butter
- ½ cup all-purpose flour
- 1 cup freshly grated parmesan cheese
- 1½ cups half and half or whole milk
- 1 teaspoon salt
- ¼ teaspoon freshly ground black pepper
- 1/4 cup chopped fresh basil
Instructions
- Heat olive oil in a large pot over medium-high heat and cook the carrots, onion, and celery until softened.
- Add the diced tomatoes, tomato paste, chicken broth, oregano, and dried basil then bring to a boil and simmer until vegetables are tender.
- Blend the soup until smooth using an immersion or regular blender and return it to the pot.
- In a separate pot, melt butter over medium-low heat and whisk in flour constantly for about 10 minutes until golden brown.
- Gradually stir ladlefuls of soup into the roux until smooth then combine the mixture back into the soup pot.
- Mix in parmesan cheese, half and half, salt, pepper, and fresh basil then cook for a few more minutes until heated through.
Notes
- Store tomato basil soup covered in the refrigerator for up to one week
- Try it served in a yummy homemade bread bowl! Slow Cooker option: combine ingredients and cook on low 5-6 hours then proceed with blending step
- For freezing, omit cream and cheese then add after reheating
- Use gluten-free flour for gluten-free adaptation
Nutrition
- Serving Size: 1 bowl
- Calories: 264kcal
- Sugar: 2g
- Sodium: 1095mg
- Fat: 20g
- Saturated Fat: 12g
- Carbohydrates: 13g
- Fiber: 1g
- Protein: 7g
- Cholesterol: 55mg
Why You’ll Love This Bisque
Here’s the thing about this soup it tastes like something that took all afternoon, but it’s ready in 40 minutes. The tomatoes, carrots, celery, and onion simmer together and blend into something silky and deeply satisfying. On a tired Tuesday when the last thing you want is a complicated dinner, this is the recipe that saves you without ever feeling like a shortcut.
It’s the kind of dish that earns a permanent spot in your weeknight rotation the very first time you make it.
What You’ll Need
Every ingredient here does real work. Nothing is filler and the hidden vegetables make it feel a little virtuous without sacrificing any of the richness.
- Diced tomatoes two cans, juice included, for deep tomato flavor
- Carrots, celery, and onion the trio that builds the body of the bisque
- Tomato paste concentrates flavor without adding extra liquid
- Butter and all-purpose flour these form the roux that gives the soup its velvety texture
- Freshly grated parmesan cheese stirred in at the end for a savory, creamy finish
- Half and half adds richness without being too heavy
- Fresh basil and dried basil leaves both matter; one builds depth, the other adds brightness
Pro Tip: An immersion blender makes the smoothest work of this but a regular blender in batches works beautifully too.
How to Make It
- Heat olive oil in a large pot over medium-high heat. Add carrots, onion, and celery and sauté until softened.
- Stir in diced tomatoes, tomato paste, chicken broth, oregano, and dried basil. Bring to a gentle boil and cook until the vegetables are tender.
- Blend the soup until smooth using an immersion blender or regular blender, then return it to the pot.
- In a separate pot, melt butter over medium-low heat. Whisk in flour and cook for about 10 minutes until the roux turns golden brown.
- Ladle the soup into the roux gradually, whisking until smooth, then stir the roux mixture back into the soup pot.
- Stir in parmesan cheese, half and half, salt, pepper, and fresh basil. Warm through and taste for seasoning.
After years of testing bisques like this one, Julia always said the roux is where patience pays off don’t rush that golden color.
Can You Make Cosi Tomato Basil Bisque Ahead of Time?
Absolutely and it actually gets better overnight. The flavors deepen as it sits, making it an ideal make-ahead meal for busy weeks.
- Store covered in the refrigerator for up to one week
- Reheat gently on the stovetop over low heat, stirring occasionally
- Freezer Note: Leave out the half and half and parmesan before freezing add them fresh after reheating to prevent curdling
Simple Swaps and Tweaks
The recipe is flexible enough to work with what you have on hand.
- Swap half and half for whole milk if that’s what’s in the fridge
- Use gluten-free all-purpose flour to make this bisque gluten-free
- Prefer a slow cooker? Add everything except the roux and cream to the slow cooker, cook on low for 5 to 6 hours, then finish with the roux, cheese, and half and half
- Serve it in a bread bowl for a dinner that feels genuinely special
Note: Adjust the dried basil and oregano at the end a little extra basil right before serving makes the whole pot taste fresher.
FAQs ( Copycat Cosi Tomato Basil Bisque )
What is the difference between tomato soup and tomato bisque?
Tomato bisque is richer and creamier than standard tomato soup, typically thickened with a butter-flour roux and finished with cream or half and half. This recipe uses both a roux and parmesan cheese for that signature velvety texture.
Can I use canned tomatoes instead of fresh for Cosi tomato bisque?
Yes – this recipe calls for two 14.5-ounce cans of diced tomatoes with their juice, so canned tomatoes are the intended choice and work perfectly here.
How do you make Cosi tomato basil bisque smooth and creamy?
Puree the cooked vegetable and tomato base with an immersion blender or standard blender until smooth, then stir in the golden roux, parmesan, and half and half for a creamy, restaurant-quality finish.
Can I make Cosi tomato basil bisque dairy-free?
The recipe uses butter, parmesan, and half and half, none of which have dairy-free swaps listed in the recipe notes, so check your recipe card for any substitutions you plan to make.
What do you serve with copycat Cosi tomato basil bisque?
This dish is delicious served in a homemade bread bowl, which complements the rich, herb-forward broth perfectly as either a starter or a satisfying main course.
This Cosi Tomato Basil Bisque comes together in about 40 minutes and tastes like you fussed all afternoon. That golden roux the one worth every patient stir gives it an impossibly silky finish you’ll remember long after the bowl is empty.
One trick worth keeping: stir in a little extra fresh basil just before serving. It wakes the whole pot right up. If you’re planning ahead, make a big batch and refrigerate it the flavors genuinely improve the next day. Just hold the half and half until you reheat, and it comes back together beautifully every time.
Did you ever have a soup that just felt like being taken care of? That’s this one. If you make it, I’d love to see your bowl share a photo or leave a note below. Save this one for someone who needs a warm dinner and a quiet moment. Here’s to the recipes that help you find your rhythm again.
