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The sausage should sizzle as soon as it hits the Dutch oven, then turn deeply browned as you break it into small pieces. That first step gives this creamy cauliflower sausage kale soup a savory base before the vegetables even go in.

I cook the onion in the same pot, where it softens in the flavorful drippings, then add garlic just long enough to smell fragrant. The cauliflower simmers until it’s tender enough to blend, and the sausage, cream, and kale go back in near the end.

Part of the cauliflower turns the broth silky, while the pieces you leave behind give each spoonful some bite. A little Parmesan melts into the hot soup at the finish, making a cozy, hearty bowl with tender greens and plenty of sausage.

Why the Sausage Comes Out Before the Cauliflower Goes In

It’s tempting to leave the sausage in the pot while the cauliflower simmers, but that extra time can turn the browned pieces firm and dry. Moving the sausage to a plate keeps it out of the longer cooking stage; it goes back into the soup only after the cauliflower has softened.

There’s a second benefit to browning it first. The sausage leaves savory drippings in the Dutch oven, and the onion cooks right in them. Those drippings season the broth from the start, so the finished soup tastes rounded rather than like plain cauliflower with meat stirred in at the end. Use a slotted spoon to lift out the sausage, not a pour-and-drain move, so the flavorful fat stays in the pot. The order is simple, but it gives each part of the soup the cooking time it needs: browned sausage stays distinct, and cauliflower gets tender enough to form the creamy base.

What Gives This Cauliflower Soup Its Creamy Texture

• Italian sausage — It brings seasoning and savory depth to the broth, as well as the browned bits that build flavor in the pot. If you’re buying links, remove the casings before cooking. Choose a sausage you enjoy on its own, since its seasoning carries through every bowl.
• Cauliflower — Very tender florets blend into the broth and give it body without flour. Choose a firm head without soft or discolored patches, and cut the florets into fairly even pieces so they soften together. Bagged florets are a handy option; check that the pieces are similar in size.
• Low-sodium chicken broth — It gives the cauliflower enough liquid to simmer while leaving room to season the soup with sausage and Parmesan. Low-sodium broth is useful here because both can be salty. Low-sodium vegetable broth works as a one-for-one swap, though the soup will have a less meaty base.
• Heavy cream — Cream gives the blended cauliflower base a richer, smoother finish. For a lighter soup, half-and-half can replace it, but the broth will be less rich and more delicate; keep the pot at a gentle simmer rather than letting it boil.
• Kale — Chopped kale holds its shape better than tender greens in a hot soup. Remove the tough stems before chopping; they stay fibrous even after the leaves soften. Baby kale can stand in, but it wilts faster and has a softer texture.
• Parmesan — The cheese adds a salty, savory finish and melts most smoothly when freshly grated. Pre-grated Parmesan is convenient and will work, though it may not blend into the soup quite as evenly.

Building the Soup in the Right Order

Brown the Sausage, Then Lift It Out

Heat the olive oil in a 6-quart Dutch oven over medium-high heat, add the sausage, and break it into small pieces as it cooks. Give it 6 to 8 minutes, until browned and at 160°F. If the meat is crowded into large clumps, break those up so the pieces brown instead of steaming. Transfer the cooked sausage to a plate with a slotted spoon and leave the drippings in the pot.

Soften the Onion Without Browning the Garlic

Add the diced onion and cook over medium heat for 4 to 5 minutes, stirring occasionally, until softened. Keep the heat at medium so the onion turns tender without catching on the bottom of the pot. Stir in the minced garlic for just 30 seconds; it should smell fragrant, not toasted. Garlic left in a hot pot too long can turn bitter.

Simmer Until the Cauliflower Is Very Tender

Stir in the cauliflower, chicken broth, salt, black pepper, and dried thyme, then bring everything to a boil over high heat. Cover the pot and lower the heat to medium-low for a 12- to 15-minute simmer. Check a larger floret with a fork: it should give easily, not resist in the center. If the pieces still feel firm, give them a little more time before blending.

Blend Part of the Base and Finish Gently

Turn off the heat before using an immersion blender, then partially puree the soup so some cauliflower pieces remain. Stir in the cooked sausage, heavy cream, and kale, and simmer gently over medium-low heat for 3 to 5 minutes, until the kale is tender and the soup is hot. Keep it below a boil once the cream is in. Take the pot off the heat, stir in the Parmesan, and let the soup rest for 5 minutes before serving.

Two Ways to Change the Sausage and Cream

Questions About Creamy Cauliflower Sausage Kale Soup

Creamy Cauliflower Sausage Kale Soup

Creamy cauliflower sausage kale soup is simmered in chicken broth, then partially pureed for a velvety texture with tender cauliflower pieces. Italian sausage, kale, heavy cream, and Parmesan make this a hearty one-pot dinner.

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Prep Time 15 minutes mins

Cook Time 30 minutes mins

resting 5 minutes mins

Total Time 50 minutes mins

Servings: 6 servings

Course: Dinner

Cuisine: Italian

Calories: 475

Ingredients Equipment Method Notes

Ingredients

  

• 1 tbsp olive oil
• 1 lb Italian sausage casings removed if needed
• 1 yellow onion medium, diced
• 3 cloves garlic minced
• 1 cauliflower large head (about 2 pounds), cut into florets
• 4 cups low-sodium chicken broth
• 0.5 tsp kosher salt
• 0.5 tsp black pepper
• 0.5 tsp dried thyme
• 1 cup heavy cream
• 4 cups kale chopped, tough stems removed
• 0.5 cup Parmesan cheese grated

Equipment

• 1 6-quart Dutch oven
• 1 Immersion blender

Method

 

1. Heat the olive oil in a 6-quart Dutch oven over medium-high heat, add the sausage, and cook for 6 to 8 minutes, breaking it into small pieces, until browned and it reaches 160°F.
2. Transfer the sausage to a plate with a slotted spoon.
3. Add the onion to the pot and cook over medium heat for 4 to 5 minutes, stirring occasionally, until softened.
4. Add the garlic and cook for 30 seconds.
5. Stir in the cauliflower, chicken broth, kosher salt, black pepper, and dried thyme.
6. Bring the soup to a boil over high heat.
7. Cover and simmer over medium-low heat for 12 to 15 minutes, until the cauliflower is very tender.
8. Turn off the heat and use an immersion blender to partially puree the soup, leaving some cauliflower pieces for texture.
9. Stir in the cooked sausage, heavy cream, and kale.
10. Simmer gently over medium-low heat for 3 to 5 minutes, until the kale is tender and the soup is hot; do not let it boil.
11. Remove the pot from the heat and stir in the Parmesan.
12. Let the soup rest for 5 minutes before serving.

Notes

For a smooth, creamy texture with some bite, partially puree the soup rather than blending it completely. Refrigerate leftovers for 3 to 4 days; freezing is not recommended because the cream can separate. For a dairy-free variation, use unsweetened plant-based cream and omit the Parmesan.