Name: Creamy Zucchini Soup with Parmesan Croutons
Prep time: 5 min
Cook time: 30 min
Total time: 35 min
Yield: 6 Servings
Cuisine: American

Cooking with Conks Verified

February 4, 2026

Creamy, cozy, and super simple, this zucchini soup is made with only a handful of ingredients and no-fuss. With zucchini, shallots, broth, sour cream, thyme, a parmesan rind, and topped with sourdough croutons, this light vegetable soup is satisfying and comforting. Blended zucchini and sour cream make this soup silky and creamy while still keeping the overall soup feeling light and healthy.

Creamy Zucchini Soup with Parmesan Croutons

Creamy Zucchini Soup with Parmesan Croutons cover

From the Cook

1/3

Creamy Zucchini Soup with Parmesan Croutons

Cooking with Conks Verified

Ingredients

WarningMilk and 5 other allergens identified

Instructions

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Instructions

Preheat your oven to 375°F and line a baking sheet with parchment paper for easy cleanup.

Add the olive oil to a large soup pot with a lid or a Dutch oven. Add the shallots and cook for 3 to 5 minutes.

Add the zucchini, season with salt and pepper, and cook for another 3 to 5 minutes to get some color on the zucchini and shallots.

Add vegetable broth and bring to a boil, then reduce the heat.

Add thyme, parmesan rind, and bring the broth to a boil. Cover the pot and cook for 20 minutes.

While the soup is cooking, toss the cubed sourdough with olive oil and shredded parmesan, then add to the parchment lined baking sheet. Bake for 10 to 12 minutes. *Note: these can also be made ahead of time and stored in an airtight container for up to a week.

After 20 minutes of cooking, remove the thyme and parmesan rind from the soup.

Add the sour cream to the soup pot, then using an immersion blender, blend the soup until smooth.

Ladle the soup into bowls and top each bowl with some sourdough croutons.

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Tips & Tricks (5)

Zucchini Moisture Management 💧
Salt and drain zucchini for 10-15 minutes before cooking to remove excess moisture, ensuring a more concentrated and rich soup flavor.
Parmesan Rind Magic 🧀
Simmer the entire parmesan rind in the soup to add deep, umami complexity and a subtle nutty undertone that elevates the entire dish.
Blending Brilliance 🥄
Use an immersion blender for smoother control and easier cleanup, and blend in pulses to achieve the perfect creamy texture without over-processing.
Crouton Crispiness Hack 🍞
Toss sourdough croutons in olive oil and grated parmesan before toasting to create an extra-crispy, flavorful garnish that adds textural contrast.
Sour Cream Swirl Technique 🥄
Add a room temperature sour cream swirl just before serving to prevent curdling and create a beautiful, professional-looking presentation.

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About the Cook

Cooking with Conks

We’re Rachel & Emily Conklin (“Conks” for short), sisters, lifelong foodies, and the voices behind Cooking with Conks. We grew up in Southern California, surrounded by bold flavors, big family meals, and the kind of kitchen chaos that turns into inside jokes