Roasted Cauliflower and Leek Soup

Roasted Cauliflower and Leek Soup

Share it on your social network:

Or you can just copy and share this url


Adjust Servings:
1 head of Cauliflower
1 large Onion
6 Garlic Cloves
4 Tablespoons, divided Olive Oil
2 Leeks
4 cups Vegetable Broth
1 teaspoon Sweet Paprika Powder
1 teaspoon, divided Sea Salt
0.5 teaspoon Ground Black Pepper
1 Tablespoon Apple Cider Vinegar

Roasted Cauliflower and Leek Soup

  • 40 minutes
  • Serves 4
  • Medium




Savory, slightly sweet and oh so creamy roasted cauliflower and leek soup!

When the colder months come around my body craves soup.

Soups are a great way to use leftover vegetables, boost our immune systems and are also a great way to stay hydrated and full!

Roasting any vegetable will result in the best flavor outcome.

While roasting, some of the vegetables brown and are slightly charred which means one thing – mega flavor!

It’s also an easy and hands-off way of cooking.

For this soup, the cauliflower, onion and garlic are roasted then added to a soup pot with sautéed leeks.

Cauliflower and leeks go so well together.

To season, I am keeping it simple with sea salt and black pepper.

For a hint of color and “spice”, I like to garnish my soup with either cayenne pepper or smoked paprika, just a pinch!

Even though there is no dairy or any sort of butter or cream, this soup is ridiculously creamy.

You will be left with some vegetables scraps, before discarding them, consider freezing them to make homemade vegetable broth which is super easy to make!

If you make this roasted cauliflower and leek soup, snap a photo and share it with me via Instagram!



Prep The Vegetables

First, preheat your oven to 420°F.

Prep the cauliflower by washing, drying and breaking up into chunks. You can use a knife for this or your hands. Discard any hard greens or wash then freeze them to make vegetable broth.

Next, peel the onion then chop into quarters. No need to peel the garlic cloves.

Lastly, cut off the ends of the leeks and discard any dark, hard ends.

Cut the leeks lengthwise then wash thoroughly. Leeks tend to have dirt and sand in between the layers.

Once rinsed well, chop the leeks into 1/4 inch half moons.

The size of the chopped vegetables does not matter too much as the soup is blended in the end.


Roast The Vegetables

Add the vegetables to a large baking sheet lined with parchment paper and spread them out into one even layer.

Drizzle with 2 Tablespoons of olive oil and season with 1/2 teaspoon of salt and 1/4 teaspoon of black pepper.

Roast for the vegetables on the middle rack for 20-25 minutes or until golden with some charred bits.


Get A Large Soup Pot

Heat a large soup pot then add 2 Tablespoons of olive oil and add the sliced leeks.

Sauté on medium heat until translucent, about 10-15 minutes, stirring occasionally.

Next, add the roasted cauliflower, onion and peeled garlic to the pot.

Pour in vegetable broth then cover the pot and simmer on medium-low heat for 5 minutes or until the cauliflower is fork tender.


Blend Until Smooth

Blend the soup until smooth using an immersion blender or a regular blender.

If you are using a regular blender, blend the soup in 3 batches.

Be careful when blending hot soup. Use a kitchen towel to cover the top and allow a good amount of room so it does not explode out of the top.

Once fully blended, add the soup back to the pot.

At this stage, I like to add a bit of apple cider vinegar or fresh lemon juice for a bit of acidity. This is optional but recommended.


Serve & Garnish

Serve the soup hot and garnish with parsley, a drizzle of olive oil, freshly cracked black pepper and a pinch of cayenne pepper or paprika powder.

Leftovers can be stored in the refrigerator for up to 5 days.


Hi guys, so glad you are here! My food blog is about easy, colorful and mostly healthy recipes. I grew up in Germany and have been in the states since 2002. Currently, I am living in sunny Miami, FL! Please leave me a comment if you have questions or recipe requests and also follow me on social media via @foodbyjonister. Happy cooking and eating!

White Sourdough Bread Sandwich Loaf
Orange Carrot Ginger Juice
White Sourdough Bread Sandwich Loaf
Orange Carrot Ginger Juice

5 Comments Hide Comments

This healthy Roasted Cauliflower and Leek Soup recipe is the BEST!
Roasted cauliflower makes it taste amazing – a great idea Joni!

Add Your Comment