Roasted Cauliflower and Potato Soup is velvety smooth and decadent-tasting yet low-fat, gluten-free, and dairy-free too!
Lincoln is like most 2 year olds in that he goes through picky eating phases, but if there’s one thing we can always count on him to eat, no matter what, it’s soup. It’s like he knew I was a Seinfeld fan from the womb.
Didn’t you always wonder what the crab bisque tasted like?
Anyway, it’s getting bitterly cold here which means I’m craving warm and cozy soup recipes like my Roasted Cauliflower and Potato Soup. This decadent, velvety soup recipe is chock full of good-for-you-ingredients and is low-fat, gluten and dairy-free, too!
Roasted cauliflower is simmered in broth with lightly caramelized onions and leeks, then blended until it has the texture of velvet. Creamy potatoes are simmered in the mixture until tender, then the whole thing is finished with a sprinkling of fresh dill and a drizzle of lemon juice. Unreal, you guys. So luxurious-tasting, and 100% GUILT FREE!
Start by sauting onion and leeks in extra virgin olive oil, seasoning with salt and pepper, over medium heat until lightly caramelized, about 10 minutes. You don’t want the vegetables too caramelized or the soup could taste sweet, but they should be very soft and tender. Add minced garlic then saute until fragrant, about 1 minute.
Meanwhile toss 6 cups cauliflower florets (about 1 medium-sized head,) with extra virgin olive oil, salt, and pepper then roast at 400 degrees for 20-30 minutes, or until the florets are lightly toasted. This is going to give the soup tons of roasty, toasty flavor.
Add the roasted cauliflower to the soup pot along with chicken broth and dried dill weed then simmer for 10 minutes. We’re using dried dill here vs fresh because delicate fresh dill would lose it’s flavor if boiled.
Next transfer the cauliflower, leeks, onions, and a little broth to a blender then blend until super smooth.
Like silk!!! I’m telling you, pureed cauliflower makes for the most velvety soup – you’d swear there’s tons of butter, cream, and flour in here but it’s all thanks to vegetahblessss. Can I get an AMEN!?
Bring the soup back up to a bubble then add diced Yukon Gold potatoes.
Place a lid on top, turn the heat down to medium-low, then simmer until the potatoes are tender, 8-10 minutes.
Last step is to stir in 1 teaspoon chopped fresh dill and a teeeeeeny tiny amount of fresh lemon juice. It really wakes this soup up! Start with a small squeeze then taste and add more if you need it.
Final step is to taste for salt and pepper levels, then you’re good to go. ALL THE SOUP FOR YOU – enjoy!
Equipment
Ingredients
- 3 Tablespoons extra virgin olive oil, divided
- 1 sweet onion, chopped
- 2 leeks, white and light green parts only, cut in half then thinly sliced
- salt and pepper
- 2 cloves garlic, minced
- 6 cups cauliflower florets, ~1 medium-sized head cauliflower
- 5 cups gluten free chicken broth
- 1/2 teaspoon dried dill weed
- 2 cups diced Yukon Gold potatoes, ~3 medium-sized potatoes
- 1 teaspoon minced fresh dill
- Squeeze fresh lemon juice
Directions
- Preheat oven to 400 degrees then line a baking sheet with foil and spray with nonstick spray. Add cauliflower florets then toss with 1 Tablespoon oil, salt, and pepper. Roast for 20-30 minutes or until lightly caramelized then set aside.
- Meanwhile, heat remaining 2 Tablespoons oil in a large soup pot over medium heat then add onions and leeks, season with salt and pepper, and then saute until lightly caramelized, 10 minutes. Add garlic then saute until fragrant, 1 minute.
- Add chicken broth and dried dill then turn heat up to bring to a boil. Add roasted cauliflower then reduce heat and simmer for 10 minutes. Transfer cauliflower plus a little broth to a blender then blend until very smooth, and then pour back into the soup pot. Bring soup back up to a bubble then add potatoes, cover and reduce heat, and then simmer until potatoes are tender, 8-10 minutes. Stir in fresh dill and a little lemon juice (start with a little, you can always add more.) Taste then add salt and pepper, and then serve.
Nutrition
Nutritional values are estimates only. Please read our full nutrition information disclaimer.
This looks incredibly tasty! I can’t wait to try this during the winter! I just wanted to give you a heads up that Pinterest isn’t letting me pin this recipe because they say the link may lead to spam. :/
Thank you, Julia! It should be all fixed up now, but let me know if you’re still having issues with your pins!
I must have left my potatoes to big cause they took a lot longer than 8-10 minutes to cook. Oops! Delicious anyway
I’m with you – bring on the cozy, warm soups and stews! This is officially happening tomorrow night.
This looks good! I need a blender!!! ;-(
This sounds SO good! Can’t wait to try it!
I have 2 year old twins and I’m curious how Lincoln eats soup. Is he good enough with a spoon already or do you feed it to him?
I found some really deep spoons at Buy Buy Baby that seem to be working for him, and he wears one of those silicone bibs that has a big pouch on the bottom on soup night. Don’t get me wrong – it’s still a mess! Soup night is usually bath night. :)
Coincidentally I just read this article on Serious Eats: http://www.seriouseats.com/2015/12/in-praise-of-ugly-food.html
Post the sludge recipe :)
I whole-heartedly agree!! :D
This is my new favorite soup and so easy for the fabulous end result! Made this tonight….umm good! Thanks for sharing.
So glad to hear, Nicki! Thanks for the feedback! :)
I love your red Dutch oven. Is it Lodge brand? I’m looking to add one to my collection.
It’s a Staub-brand pot!
Oh wow! I cannot wait to try this soup!! I love cauliflower so much, but definitely get repetitive with the ways I make it! Thanks for a new suggestion!!
When you transfer the soup back to your pot to add the potatoes, do you add what was blended to the chicken broth that was left in the pot? Or do you discard that broth and only use what was blended? Looks delicious!
Good question! You stir the puree into the remaining broth in the pot – it’ll come back together really quickly.
Usually we are not big soup eaters, however, you have changed my mind with your recipe.
Yum! This soup looks incredible and nowadays, cauliflower is one of my favorite types of vegetables to cook with!