Finnish Summer Vegetable Soup

Summer in Helsinki taught me that soup does not always need to be hearty to satisfy. The first time I had kesäkeitto at a small café by the market square, I was surprised by how something so light could feel so complete. The vegetables shone through the creamy broth without any one flavor overpowering the others. I have been making it ever since, adjusting vegetables based on what looks freshest at the market.

Last July, my neighbor asked what I was cooking and the smell of dill and butter had her at my door within minutes. We ate it on the back porch with warm rye bread, watching the late evening sun. She asked for the recipe before she even finished her bowl. That is the kind of immediate, quiet approval this soup earns.

Ingredients

• New potatoes: They hold their shape better than russets and have a sweeter, creamier texture that is perfect for delicate soups
• Fresh dill: The star of the show, add it at the end so the flavor stays bright and does not turn cooked or grassy
• Leeks: They provide a mild onion flavor without overpowering the vegetables, slice them thin so they cook through
• Heavy cream and milk: The combination creates richness without being too heavy, you can adjust the ratio to your preference
• Butter roux: This traditional Finnish thickening method gives the soup body while keeping the flavor clean and subtle
• White pepper: Black specks would look messy in this pristine soup, and white pepper has a gentler heat

Instructions

Start the vegetable base:

Bring your broth to a gentle simmer and add the potatoes, carrots, and cauliflower first since they take longer to cook

Add the quick cooking vegetables:

Toss in the green beans, peas, leeks, and radishes and cook until everything is just tender, do not overcook or you lose that fresh summer texture

Make the roux:

Melt butter in a small pan, stir in the flour and let it cook for a minute so you do not taste raw flour in the finished soup

Create the creamy base:

Whisk the milk into the roux gradually until smooth, then pour this mixture back into the soup pot along with the cream

Finish and season:

Heat through without boiling, stir in the dill at the very last moment, and taste before adding salt since the dairy already brings some richness

Save

My daughter used to pick out all the cauliflower until I started cutting the florets bite sized and cooking them just until tender. Now she calls them little trees and eats them first. Small changes make a difference when feeding skeptical eaters.

Choosing Your Vegetables

The beauty of kesäkeitto is that it adapts to whatever is fresh and available. I have made versions with yellow wax beans, shaved zucchini, or even small pieces of corn when the garden is overflowing. The key is keeping vegetables similar in size so they cook evenly.

Making It Your Own

Traditional Finnish cooks keep this soup simple, but I sometimes add a bay leaf or a sprig of thyme to the broth while the vegetables simmer. Just remember to fish them out before serving so they do not end up in someone bowl. The classic version needs no help, but subtle variations keep things interesting.

Serving Suggestions

This soup deserves a proper Swedish table setting. Rye bread with salty butter on the side makes it a complete meal. A crisp salad with a sharp vinaigrette cuts through the creaminess beautifully. Some people even like a pickle on the side for contrast.

• Ladle the soup into warmed bowls so it stays hot longer at the table
• Keep extra dill on the table for guests who love that fresh anise flavor
• This soup pairs perfectly with a light lager or crisp white wine

Save

There is something deeply satisfying about a soup that tastes like summer itself. I hope this finds its way into your regular rotation.

Recipe FAQs

→ What vegetables are traditionally used in Finnish summer soup?

Traditional Finnish summer soup includes new potatoes, carrots, cauliflower florets, green beans, fresh peas, and leeks. Some variations also add sliced radishes for extra color and mild peppery flavor.

→ Can I make this soup vegan?

Yes, simply substitute plant-based butter, milk, and cream for the dairy ingredients. Use olive oil or vegan butter for the roux and your favorite non-dairy milk and cream alternatives.

→ How long does Finnish summer soup keep in the refrigerator?

This soup stores well in an airtight container in the refrigerator for 3-4 days. The flavors often improve after sitting overnight. Reheat gently over low heat, avoiding boiling to prevent separation.

→ What is traditionally served with Finnish summer soup?

Rye bread or crispbread is the traditional accompaniment, offering a hearty contrast to the light soup. The earthy rye flavors complement the fresh vegetables beautifully.

→ Can I freeze Finnish summer soup?

While possible, freezing may affect the creamy texture and some vegetables like potatoes can become grainy. For best results, freeze before adding the cream and dairy, then add fresh when reheating.

→ What makes Finnish summer soup different from other vegetable soups?

The unique combination of light milk and cream broth with delicate summer vegetables sets it apart. Unlike heavier chowders, this soup maintains a light, clean taste while still offering richness from the dairy base.