As winter's chill sets in or St. Patrick's Day approaches, a hearty and comforting soup is often the perfect meal. This keto corned beef and cabbage soup recipe transforms the classic Irish-American dish into a delicious, low-carb alternative that will warm you from the inside out. It's a versatile dish that can be made with leftover corned beef or fresh ingredients, and it's adaptable to both Instant Pot and slow cooker methods.
Why Choose Keto Corned Beef and Cabbage Soup?
Traditional corned beef and cabbage often include potatoes, which are high in carbohydrates. This keto version replaces potatoes with low-carb alternatives like turnips, making it suitable for those following a ketogenic or low-carb diet. Cabbage itself is naturally low in carbs and high in fiber, contributing to a healthy and satisfying meal. It’s also a great way to use leftover corned beef brisket.
This soup is not only delicious but also versatile, easily adaptable to different cooking methods and ingredient preferences. Whether you prefer the speed of an Instant Pot or the slow-cooked flavors of a crockpot, this recipe can be tailored to your needs.
Ingredients and Substitutions
The key ingredients for this keto corned beef and cabbage soup include:
- Corned Beef: The star of the show, providing a savory and spiced flavor. Leftover corned beef works perfectly, or you can use a fresh brisket.
- Cabbage: A low-carb staple that adds bulk and texture to the soup.
- Broth: Beef broth is the traditional choice, but chicken or vegetable broth can also be used. Bone broth is a particularly nutritious option.
- Aromatics: Onion, celery, fennel bulb, and garlic form the flavor base of the soup.
- Spices: Mustard seeds, allspice, Italian seasoning, smoked paprika, and thyme contribute to the soup's complex flavor profile.
- Tomato Paste and Crushed Tomatoes: Add depth and richness to the broth.
- Turnips: A low-carb alternative to potatoes, providing a similar texture.
- Dairy-Free Cream Cheese (Optional): For a creamy texture, consider using a dairy-free cream cheese made from nuts, such as Miyoko's Creamery or Kite Hill. Homemade cashew or cauliflower cream can also be used.
- Fresh Herbs: Parsley and fennel fronds add a fresh, vibrant finish to the soup.
- Lemon Juice: A squeeze of lemon juice brightens the flavors and adds a touch of acidity.
For those avoiding ground beef, chicken, turkey, or ham can be substituted.
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Cooking Methods: Instant Pot, Slow Cooker, and Stovetop
This keto corned beef and cabbage soup can be prepared using several different cooking methods, each offering its own advantages:
Instant Pot Method
The Instant Pot is a pressure cooker that significantly reduces cooking time.
- Sauté the Aromatics: Use the sauté function to cook onions, celery, fennel bulb, and garlic in butter or oil until softened. Toast the mustard seeds and allspice for a few minutes to enhance their flavor.
- Create a Richer Stock: Add water or broth to the pot and stir. Remove one cup of the broth and process it in a blender until smooth. Return the processed stock to the pot to create a heartier, more flavorful base.
- Combine Ingredients: Add the corned beef, bay leaf, tomato paste, cabbage, turnips, salt, and pepper to the Instant Pot. Fill the pot with water until it nears the Max Fill line, ensuring not to exceed it.
- Pressure Cook: Secure the lid, set the vent to "sealing," and cook on high pressure for 30 minutes.
- Release Pressure: Allow the Instant Pot to slow release pressure for 15 minutes, then manually release any remaining pressure.
- Finish and Serve: Stir in fresh parsley, fennel fronds, and lemon juice before serving.
Slow Cooker Method
The slow cooker is ideal for a hands-off cooking approach, allowing the flavors to meld together over time.
- Sauté the Aromatics (Optional): For a deeper flavor, sauté the onions, celery, fennel bulb, and garlic on the stovetop before adding them to the slow cooker.
- Combine Ingredients: Place the corned beef brisket, spices, onions, carrots, and celery in the slow cooker. Pour in enough water to cover the brisket.
- Slow Cook: Cover and cook on low for 6-8 hours or on high for 4-5 hours.
- Add Cabbage: During the last half hour of cooking, add the cabbage.
- Serve: Remove the vegetables and cabbage with a slotted spoon, then slice the corned beef against the grain.
Stovetop Method
The stovetop method offers more control over the cooking process and allows for adjustments as needed.
- Brown the Beef: In a large soup pot, brown the ground beef (if using) and set aside. Drain any excess grease.
- Sauté Vegetables: Sauté the onion, celery, carrot, and green pepper in the pot until tender. Add garlic and sauté for another minute.
- Combine Ingredients: Return the beef to the pot and add brown mustard, Italian seasoning, smoked paprika, beef broth, crushed tomatoes, and thyme.
- Simmer: Bring to a boil, then reduce heat and simmer for 15-20 minutes.
- Add Cabbage: Add the cabbage and simmer until tender, about 10-15 minutes.
- Season and Serve: Season with salt and pepper to taste.
Tips for the Perfect Keto Corned Beef and Cabbage Soup
- Use High-Quality Corned Beef: Opt for uncured corned beef, which is free of nitrates and preservatives.
- Don't Overcook the Cabbage: Cook the cabbage until it's tender but still slightly firm to prevent it from becoming mushy.
- Adjust Seasoning: Taste the soup throughout the cooking process and adjust the seasoning as needed.
- Add Acidity: A splash of apple cider vinegar or lemon juice brightens the flavors and balances the richness of the soup.
- Make it Creamy: For a creamier soup, blend a portion of the soup with dairy-free cream cheese or cashew cream before serving.
- Storage: Store leftover soup in an airtight container in the refrigerator for up to 3 days or freeze for up to 3 months. Reheat on the stovetop or in the microwave.
Health Benefits of Ingredients
This keto corned beef and cabbage soup is not only delicious but also packed with nutrients.
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- Cabbage: High in fiber, vitamins C and K, and antioxidants.
- Corned Beef: A good source of protein and iron.
- Bone Broth: Rich in collagen, glycine, proline, and glutamine, which support joint health, digestive health, and immune function.
- Onions and Garlic: Contain antioxidants and compounds that support immune function.
- Turnips: A good source of fiber, vitamin C, and potassium.
Variations and Additions
- Spicy: Add a pinch of red pepper flakes or a dash of hot sauce for a spicy kick.
- Smoked: Use smoked sausage or bacon for a smoky flavor.
- Vegetarian: Substitute the corned beef with mushrooms or lentils for a vegetarian option.
- Other Vegetables: Add other low-carb vegetables like cauliflower, broccoli, or zucchini.
Serving Suggestions
This keto corned beef and cabbage soup can be served as a main course or as a starter. It pairs well with:
- A side salad with a vinaigrette dressing.
- Keto-friendly bread or rolls.
- A dollop of sour cream or dairy-free cream cheese.
- A sprinkle of fresh herbs.
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