Leftover Corned Beef and Potato Soup Recipe
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The algorithm works. It’s March 18th, you’re scrolling through recipes for the perfect way to use leftover corned beef, and you landed here. Good. You’re in the right place.
Here’s the thing about us Poles, we don’t do leftovers. We plan future meals. Wasting food isn’t in our DNA. Transforming it? That’s practically a national sport. And this Corned Beef soup? This is your corned beef’s second, better life.
This comforting soup is built on classic Polish aromatics, caraway, marjoram, and leeks. Adding New Canaan Farms Blanco River Applekraut and Country Wholegrain Mustard is an unexpected fun twist that elevates this soup.
The Applekraut brings something regular sauerkraut just can’t: apple sweetness, fermented tang, and a little green chile heat that makes the broth taste like you spent hours on it. Shredded or chopped corned beef, chunky and tender baby potatoes, and a handful of Polish spices you probably already have in your pantry. One pot meal done in 35 minutes. Garnish with fresh dill, rye croutons, and a swirl of wholegrain mustard.
Looking for more recipes like this?
- Polish Sauerkraut Soup – Authentic Polish Kapusniak
- Stuffed Cabbage Soup with meatballs – Zupa Golabkowa
- Polish White Bean Soup Recipe
- Shaved Beef with Cabbage and Mustard Dressing Salad
- Authentic Polish Hunter’s Stew – Bigos
How is this recipe different?
- I used Blanco River Applekraut from New Cannan Farms
- I used leeks instead of onions
- I added rye croutons
Quick Look at this Recipe:
Key Ingredients and Substitutions
Corned Beef – brings deep savory flavor, saltiness, and tender texture. Leftover corned beef works beautifully here because it’s already seasoned and cooked, making it perfect for soups, skillets, or hearty bowls. Trim excess fat before slicing or shredding for a cleaner broth. Flat-cut corned beef is leaner and slices neatly. Point-cut is richer and shreds beautifully, but can be fattier. If corned beef isn’t available, pastrami or leftover brisket can work, though the flavor will be slightly smokier or less briny.
Blanco River Applekraut – adds brightness, gentle acidity, and a subtle apple sweetness that balances the richness of the beef. The apple element softens the sharpness of traditional sauerkraut while still delivering that fermented tang. If unavailable, use good-quality sauerkraut and add a small diced apple or a splash of apple cider to mimic the sweetness.
Leeks – provide the aromatic base of the dish, cooking down into soft, silky strands that add mild sweetness and body without overpowering the other flavors. Only the white and light green parts should be used, and they should be thoroughly rinsed to remove any hidden grit. If leeks aren’t available, yellow onion or shallots can substitute, though they’ll have a sharper flavor.
Other ingredients: Yukon gold potatoes, carrots, celery, garlic cloves(or garlic powder), wholegrain mustard, chicken broth, butter (or olive oil), bay leaves, marjoram, caraway seeds, allspice berries, salt, black pepper, fresh dill, rye croutons
Equipment you will need
- Large soup pot or Dutch oven
- Cutting board
- Sharp chef’s knife
- Vegetable peeler
- Measuring cups and spoons
- Wooden spoon or silicone spatula
- Small baking sheet
- Mixing bowl
- Ladle
Top Tips
Clean leeks really well – slice them first, then soak the pieces in a bowl of cold water for a minute. The grit sinks, the leeks float. Scoop them out of the water. You can rinse them one more time.
Don’t overcook the potatoes – simmer just until fork-tender. Russet or Yukon Gold potatoes will release a little starch, naturally thickening the broth while still holding their shape.
Add the corned beef near the end – since it’s already cooked, it only needs a few minutes to warm through. Adding it too early can make the broth tough and overly salty.
How to make it
- Clean, peel, and chop carrots, leeks, celery, and potatoes.
- Melt butter in a large Dutch oven over medium heat. Add sliced leeks, diced carrots, and chopped celery; cook for 6-8 minutes until softened but not browned. Add garlic, marjoram, caraway, mustard, and allspice; stir for 1 minute until fragrant.
- Add potatoes and stock, along with a bay leaf. Turn to medium-high heat and bring to a boil, then reduce to a simmer. Cook for 15-18 minutes. Potatoes should be fork-tender but mostly hold their shape.
- Stir in chopped corned beef and half the applekraut (about ¾ cup). Simmer for 5 more minutes, allowing the beef to warm and release its spices. Taste and season if needed.
- Make croutons while soup simmers: toss rye cubes with 1 tbsp melted butter and a pinch of caraway and salt. Toast in a 375°F oven for 8-10 minutes until golden and crisp.
- Remove bay leaf and allspice if using whole. Ladle into bowls, top each with a spoonful of reserved applekraut for crunch, a dollop of sour cream, dill, and rye croutons. Broth should be clear-ish with visible potato and beef chunks; kraut adds glossy apple flecks.
Best ways to enjoy
With warm rye bread or soda bread
With extra kraut on top
With a generous dollop of sour cream
With a sprinkle of fresh dill
Alongside a simple green salad
As a next-day lunch
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Storage instructions, reheating
Refrigerator – Let the soup cool slightly, then transfer it to an airtight container and refrigerate for up to 4 days.
Store garnishes separately – Keep sour cream, dill, extra applekraut, and rye croutons separate from the soup. This keeps the textures fresh and prevents the croutons from turning soggy.
Freezing – This soup can be frozen for up to 2 months, but keep in mind that potatoes soften a bit after freezing. Cool completely before freezing and leave a little room in the container for expansion.
Tip: If you know ahead of time that you plan to freeze it, cut the potatoes slightly larger so they hold their shape better after reheating.
Reheating Tips
Stovetop (best method) – pour the soup into a saucepan and reheat over medium-low heat, stirring occasionally, until warmed through. Add a splash of stock or water if the broth thickens in the fridge.
Microwave – heat in a microwave-safe bowl in 60-90 second intervals, stirring between each round until hot.
Refresh the flavors – After reheating, taste the soup and brighten it with: a spoonful of reserved applekraut brine, a little fresh dill, and a dollop of sour cream
Leftover Corned Beef and Potato Soup Recipe
Equipment
- Large Dutch oven or heavy soup pot
- cutting board
- Sharp chef’s knife
- vegetable peeler
- measuring cups and spoons
- Wooden spoon or silicone spatula
- Small baking sheet
- mixing bowl
- ladle
Ingredients
- 1.5 lbs russet or Yukon gold potatoes about 4 medium, peeled and cut into ¾-inch chunks
- 12 oz leftover corned beef trimmed of excess fat and shredded or cut into ½-inch pieces
- 1 cup New Canaan Farms Blanco River Applekraut drained (reserve ¼ cup brine if available), divided
- 2 leeks medium
- 3 carrots medium, peeled and diced
- 3 celery stalks diced
- 3 garlic cloves minced
- 1 tablespoon Country Wholegrain Mustard
- 6 cups chicken stock low-sodium
- 3 tablespoons unsalted butter
- 1 bay leaf
- ½ teaspoon dried marjoram
- 1/2 teaspoon caraway seeds lightly crushed
- 3 whole allspice berries or ¼ tsp ground
- sea salt and black pepper to taste
- 2 pieces of rye bread stale
Instructions
- Clean, peel, and chop 3 carrots, 2 leeks, 3 celery stalks, and 1.5 lbs russet or Yukon gold potatoes.
- Melt 1 tablespoons unsalted butter in a large Dutch oven over medium heat. Add sliced leeks, diced carrots, and chopped celery; cook for 6-8 minutes until softened but not browned. Add 3 garlic cloves, ½ teaspoon dried marjoram, 1/2 teaspoon caraway seeds, 1 tablespoon Country Wholegrain Mustard, and 3 whole allspice berries; stir for 1 minute until fragrant.
- Add potatoes and 6 cups chicken stock, along with a bay leaf. Turn to medium-high heat and bring to a boil, then reduce to a simmer. Cook for 15-18 minutes. Potatoes should be fork-tender but mostly hold their shape.
- Stir in chopped 12 oz leftover corned beef and half the 1 cup New Canaan Farms Blanco River Applekraut (about ¾ cup). Simmer for 5 more minutes, allowing the beef to warm and release its spices. Taste and season with sea salt and black pepperif needed.
- Cut the 2 pieces of rye bread into small cubes
- Toss rye cubes with 2 tablespoons unsalted butter and a pinch of caraway and salt. Toast in a 375°F oven for 8-10 minutes until golden and crisp.
- Remove bay leaf and allspice if using whole. Ladle into bowls, top each with a spoonful of reserved applekraut for crunch, a dollop of sour cream, dill, and rye croutons. Broth should be clear-ish with visible potato and beef chunks; kraut adds glossy apple flecks.
Notes
Nutrition
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Conclusion
One pot, hearty soup done in no time, using leftover corned beef, and you can make it in a slow cooker, an Instant Pot, or the a stove top. This chunky soup delivers on flavor adn textures. The Blanco Applekraut add an unexpected flavor that will
FAQ
Can I use regular sauerkraut instead of applekraut?
Absolutely. Regular sauerkraut works well—just drain it and taste first, as some varieties can be quite salty or sharp. If using plain sauerkraut, you can add a small diced apple to keep that subtle sweet-tart balance.
Is this soup very salty because of the corned beef?
Corned beef is naturally salty, which is why using low-sodium stock is helpful. Always taste the soup at the end before adding extra salt.
What can I use instead of leeks?
If leeks aren’t available, substitute one medium yellow onion plus a small shallot. The flavor will still be sweet and aromatic, though slightly stronger than leeks.
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