Creamy Cauliflower Broccoli Soup

Featured in: Comfort Meals Made Easy

This velvety soup combines tender cauliflower and broccoli florets simmered with sautéed onions, celery, and carrots in a fragrant vegetable broth. Aromatic thyme and oregano infuse every spoonful with warmth, while a touch of milk creates an irresistibly creamy texture. The finishing touch comes from homemade golden croutons, seasoned with garlic and baked to crisp perfection. Each bowl offers a delightful contrast between the smooth, luxurious soup and the crunchy topping.

Updated on Wed, 28 Jan 2026 12:54:00 GMT
Creamy cauliflower and broccoli soup served hot in a white bowl, topped with golden croutons and fresh parsley for a comforting vegetarian meal. Save to Pinterest
Creamy cauliflower and broccoli soup served hot in a white bowl, topped with golden croutons and fresh parsley for a comforting vegetarian meal. | simplebissara.com

The first time I made this cauliflower and broccoli soup was during a particularly brutal winter storm that left us snowed in for days. The power flickered threateningly as I rummaged through the crisper drawer, finding slightly wilted broccoli and cauliflower that needed rescuing. The gentle bubbling of the pot and the aromatic steam that filled my kitchen windows with fog created a cocoon against the howling wind outside. What began as a practical solution to avoid food waste transformed into what my family now requests at the first sign of cold weather.

Last autumn, my neighbor Sarah dropped by unexpectedly just as I was ladling this soup into bowls. Her eyes lit up at the steam rising from the pot, and without a word, I grabbed another bowl from the cabinet. We sat at my kitchen island, crunching on homemade croutons and watching the rain through the window as she told me about her garden troubles. By the time she scraped the last spoonful, shed forgotten her frustrations and asked for the recipe three times before leaving.

Ingredients

  • Cauliflower and Broccoli: The star vegetables should be fresh but dont worry if theyre slightly past their prime this soup is forgiving and will transform them.
  • Aromatics: The trinity of onion, celery and carrots creates the foundation that makes this soup taste like it simmered all day even when it didnt.
  • Vegetable Broth: I keep homemade frozen in ice cube trays, but store-bought works perfectly I suggest low-sodium so you can control the salt level yourself.
  • Milk: This adds creaminess without heaviness use whatever variety you have on hand even plant-based works beautifully.
  • Crusty Bread: Slightly stale bread actually makes the best croutons, soaking up the olive oil and seasonings while maintaining that perfect crunch.

Instructions

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Prep your crouton magic:
While your oven preheats to 375°F, toss those bread cubes with olive oil, garlic powder, and a pinch of salt until every piece is coated. The smell of toasting bread will signal theyre ready when they turn golden brown after about 10-12 minutes.
Build your flavor base:
Heat olive oil in your largest pot and add the diced onion, celery, and carrots. Listen for that gentle sizzle as they soften and release their sweetness into the oil.
Awaken the aromatics:
When you add the garlic, thyme, and oregano, take a moment to lean over the pot and breathe in that herbaceous cloud of fragrance. This brief minute of cooking releases all their essential oils.
Vegetable dance:
Tumble in your cauliflower and broccoli florets, giving them a quick turn in the hot oil to coat each piece. Youll notice they brighten slightly in color as they begin to cook.
The simmer stage:
Once your broth joins the party, bring everything to a cheerful bubble before reducing to a patient simmer. The vegetables will surrender their structure during this 15-20 minute steam bath.
Transform into velvet:
This is where magic happens my friends the immersion blender turns what was chunky into something silky smooth. Work in small circular motions, lifting occasionally to incorporate air for extra creaminess.
Final touches:
Stirring in milk mellows any intensity and adds a luxurious mouthfeel. Take your time with salt and pepper, tasting as you go until it sings just right.
Serve with flair:
Each bowl deserves its crown of golden croutons, a sprinkle of vibrant parsley, and if youre feeling indulgent, a small snowfall of cheese. The contrast of smooth soup and crunchy toppings makes each spoonful an event.
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Topped with crunchy garlic croutons and fresh parsley, this creamy cauliflower and broccoli soup is ladled into a rustic bowl. Save to Pinterest
Topped with crunchy garlic croutons and fresh parsley, this creamy cauliflower and broccoli soup is ladled into a rustic bowl. | simplebissara.com

The most memorable serving of this soup happened when my brother visited after a difficult divorce. We hadnt spoken much in months, but as he quietly accepted a steaming bowl and broke a crouton between his fingers, words started flowing. By the time wed reached the bottom of our bowls, hed shared everything he was feeling, and I realized this simple vegetable soup had somehow created space for healing that direct conversations couldnt.

Make It Your Own

Ive made this soup dozens of times, and each batch tells its own story through small variations. Sometimes I roast the vegetables first for deeper flavor, occasionally I add a potato for extra thickness, and on indulgent days, I swirl in cream cheese instead of milk. One particularly successful experiment involved adding a parmesan rind during simmering which infused the broth with an umami richness that had everyone guessing the secret ingredient.

Storage and Leftovers

This soup seems to develop a deeper personality after a day in the refrigerator, as if the ingredients have had time to get properly acquainted. It keeps beautifully for up to four days, though in my house it rarely lasts that long. For freezing, leave out the milk and add it fresh when reheating freezer portions have saved me on countless busy weeknights when cooking from scratch felt impossible.

Serving Suggestions

While perfectly satisfying on its own, this soup plays well with companions that complement its creamy texture. A grilled cheese sandwich with sharp cheddar creates that classic comfort food duet, while a simple side salad with vinaigrette provides welcome brightness against the soups richness. For dinner parties, Ive served small portions as a starter in teacups with a single perfect crouton floating on top.

  • For a complete meal, add a protein element like crispy chickpeas or shredded rotisserie chicken on top.
  • Experiment with garnishes beyond croutons try toasted pumpkin seeds, crispy fried shallots, or even a drizzle of herb oil.
  • Remember to warm your serving bowls in the oven for a few minutes before ladling in the soup this simple step keeps everything properly hot to the last spoonful.
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A smooth, blended cauliflower and broccoli soup garnished with herbs and croutons, perfect for chilly days or easy weeknight dinners. Save to Pinterest
A smooth, blended cauliflower and broccoli soup garnished with herbs and croutons, perfect for chilly days or easy weeknight dinners. | simplebissara.com

Theres something deeply satisfying about transforming humble vegetables into something that brings genuine joy to the table. As you ladle this creamy creation into bowls and watch faces light up at first taste, youll understand why some recipes become more than food they become part of our story.

Recipe FAQs

Can I make this soup ahead of time?

Absolutely. This soup keeps well in the refrigerator for up to 4 days. The flavors actually deepen and improve after a day. Store croutons separately to maintain their crunch.

What's the best way to achieve the smoothest texture?

An immersion blender works wonderfully for this soup. If using a stand blender, work in batches and be careful with hot liquids. For extra silkiness, blend for a full 2-3 minutes until completely smooth.

Can I freeze this soup?

Yes, freeze the soup without the milk and croutons for up to 3 months. Thaw overnight in the refrigerator, reheat gently, and stir in the milk just before serving.

What vegetables can I substitute?

You can replace half the cauliflower with peeled potatoes for extra creaminess, or add a handful of spinach during the last minute of cooking for color and nutrients.

How do I make the croutons extra crispy?

Use day-old bread, cut into uniform cubes, and ensure they're spread in a single layer on the baking sheet. Don't overcrowd the pan, and flip halfway through baking.

Can I use frozen vegetables?

Frozen cauliflower and broccoli work well in a pinch. Thaw them first and pat dry to avoid excess water. Fresh vegetables will yield a slightly better texture and flavor.

Creamy Cauliflower Broccoli Soup

A silky smooth vegetable blend with aromatic herbs and golden croutons.

Prep Time
15 minutes
Cook Time
30 minutes
Overall Time
45 minutes
Recipe by Ava Turner


Skill Level Easy

Cuisine Type International

Portions 4 Number of Servings

Dietary Info Vegetarian Option

What You'll Need

Vegetables

01 1 medium head cauliflower, cut into florets
02 1 medium head broccoli, cut into florets
03 1 medium onion, diced
04 2 celery stalks, diced
05 2 medium carrots, diced
06 2 garlic cloves, minced

Liquids

01 4 cups vegetable broth
02 1 cup milk or unsweetened plant-based milk

Spices & Seasoning

01 2 tablespoons olive oil
02 1 teaspoon dried thyme
03 1/2 teaspoon dried oregano
04 Salt and freshly ground black pepper to taste

Croutons

01 2 cups cubed crusty bread
02 2 tablespoons olive oil
03 1/2 teaspoon garlic powder
04 Pinch of salt

Optional Toppings

01 2 tablespoons chopped fresh parsley
02 Grated Parmesan or vegetarian hard cheese

How to Make It

Direction 01

Prepare croutons: Preheat oven to 375°F. Toss bread cubes with 2 tablespoons olive oil, garlic powder, and salt. Spread on a baking sheet and bake for 10-12 minutes until golden and crisp. Set aside.

Direction 02

Sauté aromatic vegetables: In a large pot, heat 2 tablespoons olive oil over medium heat. Add diced onion, celery, and carrots; sauté for 5 minutes until softened.

Direction 03

Build flavor base: Add minced garlic, dried thyme, and dried oregano to the pot; cook for 1 minute until fragrant.

Direction 04

Add cruciferous vegetables: Stir in cauliflower and broccoli florets and cook for 2-3 minutes.

Direction 05

Simmer vegetables: Pour in 4 cups vegetable broth and bring to a boil. Reduce heat and simmer covered for 15-20 minutes until vegetables are tender.

Direction 06

Blend soup: Remove from heat. Use an immersion blender to blend soup until smooth and creamy, or blend in batches in a stand blender.

Direction 07

Finish with dairy: Stir in 1 cup milk and season with salt and pepper. Gently reheat if needed.

Direction 08

Serve: Ladle soup into bowls and top with croutons, fresh parsley, and cheese if desired. Serve hot.

Tools Needed

  • Large soup pot
  • Knife and cutting board
  • Baking sheet
  • Immersion or stand blender
  • Wooden spoon

Allergy Details

Always review all ingredients for allergens and check with a healthcare provider if uncertain.
  • Contains wheat from croutons
  • Contains milk if using dairy milk or cheese
  • Use gluten-free bread for croutons to make gluten-free
  • Use plant-based milk and omit cheese for dairy-free version

Nutrition Details (per serving)

Nutritional data is just for reference. Please don't treat it as medical or dietary advice.
  • Calories Count: 240
  • Fats: 10 g
  • Carbohydrates: 30 g
  • Proteins: 8 g