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Slow Cooker Low Carb Chicken Soup with Cauliflower

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Chicken soup. The very name is synonymous with comfort, healing, and home. For centuries, across cultures and continents, this golden elixir has been a universal remedy for everything from a common cold to a weary soul. Its enduring legacy is rooted in its simple, nourishing ingredients and its remarkable ability to provide warmth and solace  . For those embracing a low-carb or ketogenic lifestyle, however, the traditional chicken noodle or chicken and rice soup often falls outside the dietary guidelines. But what if you could capture all the soul-warming goodness of this classic, without the carbs? This Slow Cooker Low Carb Chicken Soup with Cauliflower recipe proves that you can, offering a delicious, keto-friendly adaptation that sacrifices nothing in terms of flavor or comfort.

  • Total Time: Approximately 3.5 to 8.5 hours
  • Yield: 6 - 8 servings 1x

Ingredients

Scale

For the Chicken & Aromatics:

  • 1 tbsp Olive Oil:
  • 1.5 lbs Boneless, Skinless Chicken Thighs or Breasts: (or bone-in for richer broth)
  • 1 medium Yellow Onion: Diced.
  • 2 Carrots: Peeled and diced (use sparingly for strict keto, or substitute with more celery/bell pepper).
  • 2 Celery Stalks: Diced.
  • 4 cloves Garlic: Minced.

For the Broth & Seasoning:

  • 6 cups Chicken Broth: Low sodium, preferably bone broth.
  • 1 (14.5 oz) can Diced Tomatoes: Undrained (optional, for color and acidity).
  • 1 tsp Dried Thyme:
  • ½ tsp Dried Rosemary:
  • 2 Bay Leaves:
  • Salt and Black Pepper: To taste.

For the Low-Carb Vegetables:

  • 1 large head Cauliflower: Cut into bite-sized florets.
  • ½ cup Fresh Parsley: Chopped, for garnish.

Instructions

  1. Sauté Aromatics (Optional but Recommended): In a large skillet or Dutch oven over medium heat, heat the olive oil. Add the diced yellow onion, carrots, and celery. Sauté for 5-7 minutes until softened. Add the minced garlic and cook for 1 minute until fragrant. Transfer the sautéed vegetables to the slow cooker.
  2. Add Chicken & Broth: Place the chicken thighs or breasts into the slow cooker. Pour in the chicken broth and diced tomatoes (if using). Add the dried thyme, dried rosemary, bay leaves, salt, and black pepper. Stir gently to combine.
  3. Slow Cook (Initial Phase): Cover and cook on the LOW setting for 6-7 hours, or on the HIGH setting for 3-3.5 hours, until the chicken is cooked through and very tender.
  4. Shred Chicken & Add Cauliflower: Carefully remove the cooked chicken from the slow cooker and shred it using two forks. Discard any bones if using bone-in chicken. Return the shredded chicken to the slow cooker. Add the cauliflower florets to the soup. Stir gently.
  5. Continue Slow Cooking: Cover and continue cooking on HIGH for an additional 30-45 minutes, or on LOW for 1-1.5 hours, until the cauliflower is tender-crisp (cooked through but not mushy).
  6. Serve: Remove the bay leaves. Taste and adjust seasoning if necessary. Ladle the soup into bowls, garnish generously with fresh chopped parsley, and serve hot.

Notes

  • Broth Quality: Using a high-quality chicken broth or bone broth will significantly enhance the flavor and nutritional value of your soup.
  • Cauliflower Timing: Adding the cauliflower later in the cooking process is crucial to prevent it from becoming overly soft or mushy. You want it tender-crisp, not disintegrated .
  • Chicken Cut: Boneless, skinless chicken thighs tend to stay juicier in the slow cooker than breasts, but both work well. Bone-in chicken will add more flavor to the broth.
  • Optional Add-ins: For extra flavor and nutrition, consider adding a handful of fresh spinach or kale during the last 15 minutes of cooking. A squeeze of fresh lemon juice at the end can brighten all the flavors.
  • Make Ahead & Storage: This soup is excellent for meal prep. Store in an airtight container in the refrigerator for up to 4 days. It also freezes well for up to 3 months. Thaw overnight in the refrigerator and reheat gently on the stovetop or in the microwave.
  • Author: Elle
  • Prep Time: 20 Minutes
  • Cook Time: 3-4 hours (High) or 6 - 8 hours (Low)
  • Category: Comfort Food, Main Dish, Soup
  • Method: Slow Cooking
  • Cuisine: American
  • Diet: Gluten-Free, Ketogenic, Low-Carb