My post for Corned Beef and Cabbage Soupfirst appeared on Grumpy’s Honeybunch where I am a contributor. Try this Corned Beef and Cabbage Soup low carb recipe!
Looking for a keto St. Patrick’s Day soup? Look no further! Spiced corned beef, creamy turnips, onion, and fennel bulb all make a delicious appearance in this keto instant pot corned beef and cabbage soup recipe. Make your corned beef and cabbage soup low carb! You won’t regret making the best keto cabbage soup!
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If you think there’s nothing that tops the comfort food list like corned beef and cabbage, then you need to try thisCorned Beef and Cabbage Soup low carb recipe! All the delicious flavors of corned beef, reworked into a soul-warming keto corned beef and cabbage soup full of low carb goodness.
This is the classic Irish corned beef dish you love, transformed into a soup. It’s not only great for leftover corned beef, but has zero of the starchy potatoes you try to avoid on a keto diet. Plus, a few flavorful surprises!
Try this Keto Broccoli Leek Soup with Turkey and Bacon!
Why I created low carb cabbage soup recipe in the instant pot
It wasn’t always the case, but now Ilovemy pressure cooker. It was comfort food recipes like thisCheesy Keto Super Taco Instant Pot Omeletthat won me over.
With this Corned Beef and Cabbage recipe, you can sauté the onions and toast the spices using the sauté setting. As a result, I have less dirty dishes. This is one of the reasons I fell in love with the Instant Pot!
The Instant Pot makes it easy to use more than one function with all of its different settings. Because of these reasons I chose to make my soup in an Instant Pot.
If you love the idea of turnips replacing potatoes, try this Keto Turnip Breakfast Hash with Bacon!
Related: Try this Keto Creamy Tomato Soup for the Instant Pot!
Corned Beef and Cabbage Soup Tips
Can I use corned beef leftovers for corned beef and cabbage soup low carb recipe?
Absolutely! You can definitely use your leftover corned beef from St. Patrick’s Day for this instant pot corned beef and cabbage soup. Dice up the corned beef leftovers or shred then and toss them right into the stock! And, it is such a perfect winter dinner! So if you don’t know what to make with leftover corned beef brisket, you’ve found yourself a winning dinner recipe. Have yourself a second St. Paddy’s Day feast!
How did you make this low carb cabbage soup into a keto soup?
Corned beef and cabbage is not difficult to make ketogenic. Most people eat their corned beef and cabbage with a side potatoes, so most versions of the soup add diced potatoes in the broth. As a substitution, you can add a low carb alternative like diced turnips to your stock and cook like you would potatoes. 
Can I make this a slow cooker corned beef and cabbage soup low carb recipe?
Yes! You can certainly make this in a crockpot. Just do the sautéing on your stovetop and finish the recipe off in your slow cooker instead of an Instant Pot. Cook on low for 4-6 hours
Why do you use the saute setting on the Instant Pot for this recipe?
The saute setting allows you to make this a one-pot dinner. You saute the onions, celery, fennel bulb, and garlic and toast the mustard seeds right in the same pot. As a result, you have less dishes to wash. That always sounds great to me! 
Is corned beef keto friendly?
Yes! As long as you’re not eating potatoes along with your corned beef dinner, you’re golden!
The best keto comfort food soup! This keto instant pot corned beef and cabbage soup low carb recipe will warm you right up and leave you doing an Irish jig. Use up those St. Patrick’s Day corned beef leftovers with this keto leftover corned beef and cabbage soup recipe!
If you have more leftover corned beef to use up, try this Keto Corned Beef Hash with Eggs and Turnips!
Click this link for more Keto Main Dishes from Keen for Keto.
How to make leftover corned beef soup
Time needed:1 hour and 30 minutes
Made in the Instant Pot, Corned Beef and Cabbage soup is a delicious way to enjoy your leftover Corned Beef dinner!
- Sauté and toast the aromatics.
First, you will sauté and toast the aromatics. For this, you’ll use the sauté function on your Instant Pot.
- Process some of the broth.
After sautéing and toasting the aromatics, you’ll add liquid to make a vegetable broth. Then, you’ll remove one cup of the mixture to process in a blender. This helps the flavors to marry and makes the stock much heartier with a richer flavor.
- Add processed stock and remaining ingredients to pot.
The processed stock goes back into the pot with the rest of the stock as well as the rest of the ingredients except the fresh herbs and the lemon juice. If you are not using leftover corned beef in this recipe, then this is the step where you would add your raw beef to the Instant Pot.
- Add water for more broth
Fill the pot to the max fill line with water. It may feel like a thick soup, but will thin out as it cooks, as the vegetables release more liquid. Or if you prefer an Irish Corn Beef Stew, don’t thin yours out as much.
- Release pressure and serve!
After the low carb soup is finished cooking, be sure to allow 15 minutes for the pressure cooker to slow release pressure.
Add your chopped fennel fronds, chopped parsley, and squeeze in the juice of the lemon. Stir it up and enjoy!
Related: Keto Creamy Tuscan Chicken Thighs in Crock Pot
You May Need
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If you don’t own an Instant Pot, then I highly recommend one! I thought I didn’t need one and resisted buying it. Then when we did get one, I realized it was an awesome tool to use in the kitchen! We’ve had it for quite a while and it’s been so good to us! It has plenty of settings, but is still simple and easy to figure out. Try it out with this corned beef and cabbage soup low carb recipe! Here’s the Instant Pot I use:
Yield: 10 servings
Prep Time: 20 minutes
Cook Time: 50 minutes
Additional Time: 20 minutes
Total Time: 1 hour 30 minutes
It’s about that time! You’re finished with St. Patrick’s Day and don’t know what to do with those corned beef leftovers. You’re in luck! I’ve got the best leftover corned beef and cabbage soup recipe for you! This ketogenic corned beef and cabbage soup recipe is different from the rest. Click the link to find out why with this keto comfort food dinner!
Ingredients
- 1 medium onion. diced
- 2 celery stalks, diced
- 1 fennel bulb, diced (reserve fronds)
- 2 cloves garlic, minced
- 6 tablespoons butter
- 1 ½ tablespoons mustard seed
- 3 pounds corned beef, diced or shredded
- Bay leaf
- 2 tablespoons tomato paste
- 4 cups chopped cabbage
- 5 turnips, diced small in ¼” cubes (about 2 cups)
- ½ teaspoon pink salt
- Freshly ground black pepper to taste
- ½ cup parsley, chopped
- Fennel fronds
- Juice of 1 fresh lemon
Instructions
- Set the Instant Pot to sauté. It should read “30”.
- Add butter and onion. Saute for 10 minutes, stirring frequently.
- Add celery stalks, fennel, and garlic. Saute 6 more minutes.
- Push vegetables to the sides of the pot so there’s a “hole” in the middle, exposing the metal bottom of the pan. Add the mustard seeds to the middle of the pan and stir, toasting the seeds for 2 minutes.
- Add the allspice to the center with the mustard seeds and toast for 2 more minutes.
- Turn off the sauté feature.
- Add 2 cups water to the pot and stir.
- Remove 1 cup of the broth and process in a blender till smooth. Return the processed stock to the pot. Stir.
- Add the corned beef, bay leaf, tomato paste, cabbage, turnips, salt, and pepper. Fill the instant pot up with water till it nears the Max Fill line. Do NOT fill it higher than this line.
- Place the lid on the Instant Pot, turn the vent to “sealing”, and set the Instant Pot to cook for 30 minutes on high pressure.
- While the cabbage soup cooks, dice the parsley and fennel fronds, being careful not to use any of the harder stems of the fennel.
- When the soup is done cooking, allow the Instant Pot to sit and slow release pressure for 15 minutes. After 15 minutes, you may set the vent to “venting” to release the remainder of the pressure.
- When the pressure cooker is done venting, open the pot. Add the parsley, fennel fronds, and lemon juice, and stir. Serve and enjoy!
Recommended Products
As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.
Instant Pot DUO60 6 Qt 7-in-1 Multi-Use Programmable Pressure Cooker, Slow Cooker, Rice Cooker, Steamer, Sauté, Yogurt Maker and Warmer
Amazingware Porcelain Bowls - Perfect for Cereal, Soup, Salad and Pasta, Set of 6, Assorted Designs
Nantucket Home St Patricks Day Swirling Shamrocks Cutwork Tablecloth - (60"x102")
McCormick Gourmet Organic Yellow Mustard Seed, 2.12 oz
COLE & MASON Derwent Pepper Grinder - Stainless Steel Mill Includes Gourmet Precision Mechanism and Premium Peppercorns
Celtic Classics Relief Pattern Celtic Links Cereal Soup Bowls, Set of 4
Nutrition Information:
Yield: 10Serving Size: 2.4 cups
Amount Per Serving:Calories: 331Total Fat: 24gCarbohydrates: 9gNet Carbohydrates: 6gFiber: 3gSugar: 3gProtein: 20g
You'll also love these other keto comfort food dinners!
Keto Ground Beef Stroganoff Casserole with Cabbage
Keto Taco Casserole
Grain-Free Keto Spinach Macaroni Inferno
It’s about that time! You’re finished with St. Patrick’s Day and don’t know what to do with those corned beef leftovers. You’re in luck! I’ve got the best leftover corned beef and cabbage soup recipe for you! This ketogenic corned beef and cabbage soup recipe is different from the rest. Try this keto comfort food dinner!
