Swiss Chestnut Soup (Marronisuppe)
Swiss chestnut soup is a rich and velvety soup, with a harmonious blend of nutty, savory, and slightly sweet flavors, making it a comforting and refined dish.
Swiss chestnut soup is one of those deeply comforting Swiss dishes that instantly makes a cold day feel cozy. In Switzerland, it’s a winter staple – earthy, velvety, and naturally sweet from the chestnuts that grow all across the Alpine foothills. There is something so nostalgic about the smell of roasting chestnuts in the streets during winter markets, and how chestnut dishes always signal the start of the festive season.
While chestnuts often shine in sweeter recipes like my Whipped Chestnut Pavlovas or that dreamy Chestnut Cream Tiramisu, this Swiss Chestnut Soup captures an entirely different kind of warmth: buttery sautéed aromatics, sweet roasted chestnuts, fragrant thyme, and a splash of cream to keep it luxuriously smooth. It’s elegant enough for a holiday dinner but simple enough to make on a quiet weeknight.
Serve it with crusty bread, a swirl of cream, or a sprinkle of crumbled chestnuts – and if you want to take it to another level, add the tiniest drizzle of truffle oil. It’s pure Swiss comfort in a bowl.
What you’ll love about this recipe
- It’s pure Alpine comfort.
- Velvety, earthy, and naturally sweet from chestnuts – the kind of cozy bowl that feels like stepping into a Swiss winter market.
- A simple recipe that tastes luxurious.
- Everyday ingredients become something elegant thanks to thyme, sautéed aromatics, and a splash of cream.
- Beautifully smooth and creamy.
- Chestnuts blend into the silkiest texture, no fancy techniques required.
- Perfect for fall and winter gatherings.
- This Swiss chestnut soup works as a holiday starter, a dinner party soup, or a comforting weeknight meal.
- Flexible and customizable.
- Make it vegetarian, dairy-free, or extra rich – this recipe adapts easily.
- Pairs effortlessly with your existing chestnut recipes.
- If you love chestnut desserts like my Whipped Chestnut Pavlovas or Chestnut Cream Tiramisu, this is the savory counterpart that completes the trio.
Variations & Substitutions
- Make it Dairy-Free
- Use olive oil instead of butter and coconut milk instead of cream. (It gives a lovely subtle sweetness.)
- Make it Lighter
- Swap heavy cream for half-and-half or whole milk.
- Make it Extra Rich
- Add a splash of sherry, cognac, or dry white wine after sautéing the aromatics.
- Vegetarian or Vegan
- Use vegetable stock. For vegan: replace cream with coconut milk or cashew cream.
- Add Veggies
- roasted squash
- parsnip
- sweet potato
All complement chestnuts beautifully.
Ingredients Explained
Butter
Adds richness and helps soften the aromatics without browning them.
Onion, Leek, Carrot & Celery
The classic soup base. These aromatics build sweetness and depth.
Garlic
Adds warmth and flavor without overpowering the chestnuts.
Roasted Chestnuts
The star ingredient. Sweet, earthy, and naturally creamy. (read how to easily roast your own chestnuts at home here)
Vacuum-packed or canned chestnuts work perfectly.
Chicken or Vegetable Stock
Light stock keeps the soup delicate; vegetable stock makes it vegetarian.
Heavy Cream
Creates a silky, luxurious texture. Half-and-half works for a lighter soup.
Thyme & Bay Leaf
Herbs that enhance chestnut’s nutty flavor without overshadowing it.
Salt & Pepper
Essential for balancing the sweetness of the chestnuts.
Optional Garnishes
Whipped cream, crumbled chestnuts, fresh thyme, or truffle oil make this Swiss chestnut soup restaurant-worthy.
FROM MY SWISS KITCHEN
Join me at the kitchen table.
Swiss-inspired recipes, cozy baking, and seasonal stories delivered each week.
Seasonal recipes, Swiss stories, and no spam.
Step-by-Step Instructions
How to make Swiss Chestnut Soup:
Sauté the Aromatics
- Melt butter in a large pot over medium heat.
- Add onion, leek, carrot, and celery. Cook 5–7 minutes, until softened but not browned.
- Add garlic and cook 1 minute more.
Add Chestnuts & Stock
- Stir in roasted chestnuts, thyme, and bay leaf.
- Pour in the chicken or vegetable stock.
- Bring to a boil, then reduce heat and simmer 20 minutes.
Blend the Soup
- Remove the bay leaf.
- Blend with an immersion blender until smooth, or use a countertop blender in batches.
Add Cream
- Stir in the heavy cream.
- Warm gently over low heat – do not boil.
- Season with salt and freshly ground pepper.
Serve
- Ladle your soup into bowls and garnish with thyme, whipped cream, crumbled chestnuts, or a drizzle of truffle oil.
- Serve Swiss chestnut soup warm with crusty bread.
Swiss Chestnut Soup
Ingredients
Method
- Melt butter in a large pot over medium heat.
- Add onion, leek, carrot, and celery. Cook 5–7 minutes, until softened but not browned.
- Add garlic and cook 1 minute more.
- Stir in the chestnuts, thyme, and bay leaf.
- Bring to a boil, then reduce heat and simmer 20 minutes.
- Remove the bay leaf.
- Blend the soup with an immersion blender until smooth
- (or blend in batches in a countertop blender).
- Stir in the heavy cream.
- Warm gently over low heat — do not boil.
- Season with salt and pepper.
- Ladle into bowls.
- Garnish with whipped cream, extra thyme, crumbled chestnuts, or truffle oil.
- Serve warm with crusty bread.
Notes
- For the smoothest texture, use vacuum-packed chestnuts – they blend more evenly.
- If the soup seems too thick, add a splash of stock to thin it.
- Do not brown the aromatics; keeping them pale gives a softer, sweeter flavor.
- Blend extra well; chestnuts can leave graininess if under-blended.
- Don’t let the soup boil after adding cream to prevent separation.
- For an ultra-smooth restaurant-style finish, strain through a fine sieve.
- A drizzle of truffle oil instantly elevates this to holiday-dinner level.
Disclaimer: I am not a certified nutritionist. Nutrition facts are calculated using an automated database of common ingredients and are intended as an estimate only. Variations can occur depending on product brands, measuring methods, and ingredient swaps.
Did you make this recipe?
I'd love to know how it turned out!
Serving Ideas
- With warm crusty bread or a rustic baguette
- Topped with whipped cream or crème fraîche
- Garnished with extra thyme or chopped chestnuts
- A drizzle of truffle oil for a luxurious Swiss touch
- Paired with a simple green salad or a charcuterie board
Make it Perfect
- Blend very well – chestnuts can be grainy if under-blended.
- Add stock slowly until the texture is exactly how you like it.
- Taste at the end – chestnuts are sweet, so salt is essential.
- Don’t boil after adding cream to prevent splitting.
- For ultra-smooth texture, strain through a fine sieve after blending.
Storage & Make-Ahead
- Keep your Swiss chestnut soup in an airtight container in the fridge for 3–4 days.
- Reheat gently over low heat – do not boil.
- Freezes well for up to 2 months. Stir after thawing to restore texture.
Frequently Asked Questions
Watch the Video
This Swiss Chestnut Soup is the kind of dish that turns a cold evening into something warm and comforting – velvety, aromatic, and just a little bit luxurious. Whether you serve it as a cozy dinner or as an elegant starter for the holidays, it brings a touch of Alpine comfort to the table.
If you love nostalgic, Swiss-inspired recipes like this, join my newsletter. That’s where I share new recipes, stories, and behind-the-scenes kitchen inspiration first.
Sign up below and stay inspired with every new Swiss classic.
NEWSLETTER SIGN-UP
Hungry for More Swiss Recipes?
If you’re curious about Swiss food beyond fondue and chocolate, you’re in the right place.
Subscribe to my newsletter and I’ll send you seasonal recipes, Swiss kitchen favorites, and the occasional family story straight from my Swiss-Canadian kitchen.
