Contents
- 📜 A Bit of History: Why Thursdays?
- 🧂 Ingredients for Finnish Split Pea Soup with Ham
- 🍲 Tools & Equipment
- 👩🍳 Step-by-Step: How to Make Finnish Split Pea Soup
- 🍽️ Serving Suggestion: Make It a Thursday Tradition
- 🛠️ Variations & Substitutions
- ❤️ Why You’ll Love Hernekeitto
- 🔁 Leftovers & Storage
- 🇫🇮 Embrace the Finnish Comfort Food Tradition
A hearty, comforting Nordic classic, Hernekeitto is a traditional Finnish split pea soup made with green peas and savory ham. Often enjoyed on Thursdays in Finland, this protein-rich dish is simple, satisfying, and deeply rooted in Finnish culture.
Equipment
- Large bowl (for soaking peas)
- Heavy-bottomed soup pot or Dutch oven
- Measuring cup
- Ladle
- Cutting board and knife
Ingredients
Main Ingredients
- 2 cups green split peas (soaked for 6–8 hours or overnight)
- 1-2 lbs ham (ham hock, ham bone, or boneless ham)
- 1 large yellow onion, diced
- 6 cups water or broth (chicken or vegetable)
- Salt, to taste
- White or black pepper, to taste
Optional Add-Ins
- 1-2 carrots, chopped
- 1 celery root (celeriac), diced
- 1 small rutabaga or parsnip, chopped
- 1-2 bay leaves
- 1-2 thyme sprigs
- 1 tsp mustard (for serving)
Serving Suggestions
- Crusty rye or sourdough bread
- Butter (e.g., Kerrygold)
- Finnish pancakes (lettu or pannukakku) for dessert
Instructions
- Soak the PeasPlace split peas in a large bowl and cover with water. Soak overnight or for at least 6–8 hours. Drain before cooking.
- Combine IngredientsIn a large soup pot, combine soaked peas, diced onion, ham, and 6 cups of water or broth. Season with a pinch of salt and pepper.
- Bring to a BoilBring to a boil over medium-high heat. Skim off any foam that forms on the surface.
- Simmer GentlyReduce heat and simmer uncovered for 75–90 minutes, stirring occasionally, until the peas are soft and creamy and the ham is fully cooked.
- Remove & Shred HamIf using a bone-in ham, remove it, shred or chop the meat, and return it to the pot.
- Taste & AdjustSeason with more salt and pepper as needed. Serve hot with mustard, crusty bread, and butter.
Notes

📜 A Bit of History: Why Thursdays?
Serving Hernekeitto on Thursdays is a centuries-old tradition in Finland, originally linked to Christian fasting practices. In medieval times, it was common to abstain from meat on Fridays. As a result, Thursday became the day for a filling, protein-rich meal — and Hernekeitto fit the bill perfectly. Even today, many Finnish schools and military canteens serve this soup on Thursdays, often followed by a dessert of Pannukakku (Finnish oven pancake) or lettu (thin pancakes) — making this meal not only comforting, but also nostalgic for many Finns.🧂 Ingredients for Finnish Split Pea Soup with Ham
Main Ingredients:- 2 cups green split peas
- 1–2 pounds ham (smoked ham hock, leftover meaty ham bone, or even boneless ham)
- 1 large yellow onion, diced
- 6 cups water or broth (chicken or vegetable)
- Salt and freshly ground white or black pepper, to taste
- Bay leaf, thyme sprigs, or whole allspice (for extra depth)
- Carrots, celery root, rutabaga, or parsnips (for a more Nordic-style soup)
- Mustard for serving (Finns love adding a dollop on the side!)
- Crusty rye bread or sourdough, plus butter (Kerrygold is an excellent choice)
🍲 Tools & Equipment
- Large bowl (for soaking peas)
- Heavy-bottomed soup pot or Dutch oven
- Measuring cup
- Ladle
- Cutting board and knife
👩🍳 Step-by-Step: How to Make Finnish Split Pea Soup
1. Soak the Peas
Start by soaking the green split peas in a large bowl of cold water. They’ll expand, so make sure to use plenty of water. Soak overnight, or for at least 6–8 hours.⏱️ Tip: If you're short on time, a quick-soak method can work — bring peas to a boil for 2 minutes, then remove from heat and let sit for an hour before draining.
2. Prepare the Soup Base
Drain the soaked peas and transfer them to a large soup pot. Add:- 6 cups of water or broth
- The diced onion
- Your ham or ham bone
- A pinch of salt and pepper
3. Simmer Gently
As the soup starts to boil, skim off any foam that rises to the surface — this helps keep the broth clear and clean-tasting. Reduce heat to low and let the soup simmer uncovered for 75 to 90 minutes, or until the peas are tender and creamy and the ham is fully cooked.🥄 If your ham cooks faster than the peas, remove it, cover it with foil to keep warm, and return it to the pot when the peas are done.
4. Finish & Serve
Once fully cooked, remove the ham and chop or shred it, then stir it back into the soup — or slice and serve on the side. Taste and adjust seasoning with more salt and pepper. Ladle into bowls and serve hot.🥖 Don’t forget the sides: Crusty rye or sourdough bread with good butter and a dab of mustard elevate this meal beautifully.
🍽️ Serving Suggestion: Make It a Thursday Tradition
For the full Finnish experience, serve this soup on a Thursday evening with:- Lettu or Pannukakku (Finnish pancakes) for dessert
- A simple salad or pickled beets on the side
- A cozy fire or candlelight ✨
🛠️ Variations & Substitutions
- Vegetarian Version: Omit the ham and use vegetable broth. Add extra veggies like carrots, parsnips, and celery root for flavor and texture.
- Meat Alternatives: Try lamb, salt pork, or even smoked turkey leg for different flavors.
- Yellow Split Peas: While green split peas are more common in U.S. stores, yellow split peas are traditionally used in Finland and other Nordic countries.
- Aromatic Herbs: Add a bay leaf or sprig of thyme with the ham for extra fragrance.
❤️ Why You’ll Love Hernekeitto
- Rich in protein and fiber
- Budget-friendly and perfect for using up leftover ham
- Deeply satisfying and nostalgic
- Perfect for meal prepping — it tastes even better the next day!