National Dish Luxembourg: Kachkéis Soup (Recipe)
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Discover Kachkéis Soup, one of Luxembourg’s most comforting bowls! This velvety cheese soup builds on the country’s famous soft cooked cheese, rounded out with onion, garlic and a splash of cream. It is the sort of dish that warms you through on a cold winter evening or restores you after a long day. Rich, savoury and surprisingly simple, it brings a genuine taste of the Grand Duchy to your kitchen table.
About Kachkéis Soup
Kachkéis Soup is not only a wonderfully tasty dish but also part of Luxembourg’s rich culinary tradition. This hearty cheese soup brings together the flavours of regional cheeses and fresh ingredients, and the result is a real treat. As a true piece of comfort food it can be enjoyed during the cold winter months or as a restorative meal after a long day. The soup offers not just a creamy taste but an interesting play of textures too.
Ingredients (serves 1–2)
- 250 ml vegetable stock
- 150 g Kachkéis (Luxembourgish soft cooked cheese)
- 1 small onion
- 1 garlic clove
- 2 tablespoons butter
- 1 tablespoon plain flour
- 50 ml cream
- Salt and pepper, to taste
- Fresh parsley, to garnish
Shopping for the ingredients
When shopping for the ingredients for Kachkéis Soup, it is worth paying attention to the quality of each component. Look out for fresh vegetables and use regional produce wherever possible. The Kachkéis is the heart of the soup, so it pays to choose a good-quality cheese to get the best flavour — the same cheese that stars in Letzebuerger Kachkéis. Visit local markets or a good delicatessen to track down the best ingredients.
Preparing the dish
Making Kachkéis Soup begins with getting the ingredients ready. The onion and garlic should be finely chopped so they release their full aroma. You should also cut the cheese into small pieces so that it melts more evenly into the soup. Good preparation keeps the cooking process smooth and gets the dish on the table faster.
Step-by-step instructions
- Melt the butter in a pan and sweat the onion and garlic until translucent.
- Add the flour and cook briefly to create a light roux.
- Slowly pour in the vegetable stock while stirring, to avoid any lumps forming.
- Bring the soup to the boil and let it simmer for around 10 minutes.
- Add the Kachkéis and stir until it has melted completely.
- Stir in the cream and season the soup with salt and pepper.
- Ladle the Kachkéis Soup into bowls and garnish with fresh parsley.
Gluten-free / lactose-free version
If you would like to make a gluten-free or lactose-free version of Kachkéis Soup, the adjustments are straightforward. Instead of wheat flour you can use gluten-free flour or cornflour to thicken the soup. For the lactose-free option, choose a lactose-free cheese and swap the cream for a plant-based alternative such as oat or soya cream. These changes make the dish accessible to everyone without losing its distinctive flavour.
Tips for vegans and vegetarians
For a vegan version of Kachkéis Soup you only need to modify the base ingredients slightly. Use a plant-based cheese that melts well and replace the butter with a vegetable fat. You can also swap the cream for coconut milk or another plant-based cream alternative for a delicious result. With these adaptations vegans too can enjoy this full-bodied soup.
More tips and tricks
To make Kachkéis Soup even more interesting, you can add various herbs and spices such as nutmeg, thyme or chives. These lend the soup an extra note and make it more aromatic still. Take care to dose the seasoning gently so it does not mask the base flavours. You can also vary the consistency by blending part of the soup and leaving the rest chunky — that gives a lovely contrast in texture, much as it does in a Gromperesupp.
Adapting the recipe to your taste
Kachkéis Soup adapts beautifully to personal preference. Experiment with different cheeses to discover new flavours, or add seasonal vegetables such as carrots or leeks. You could also stir in a little extra seasoning or a pinch of chilli for a bit of a kick. Adjustments like these make the dish your own and suit it to every palate.
Ingredient substitutions
If you would like to vary the soup, there are a few alternatives to the classic ingredients. Instead of vegetable stock you can use chicken stock for a more intense flavour. Rather than fresh parsley, basil also works well as a garnish and adds another layer of taste. A handful of diced potato gives the soup extra body, in the spirit of Bouneschlupp mat Gromperen. Experimenting with the ingredients lets you shape the dish exactly to your liking.
Drink pairing ideas
A number of drinks go beautifully with a bowl of Kachkéis Soup. A cool, light beer makes a refreshing companion, while a crisp white wine underlines the flavours of the soup. For an alcohol-free option you could serve a non-alcoholic shandy or sparkling water with lemon. These drinks bring extra freshness and support the taste of the soup perfectly.
Serving and presentation ideas
The presentation of Kachkéis Soup can be made particularly appealing with a few simple tricks. Serve the soup in attractive bowls and garnish with a small sprig of fresh parsley or a few edible flowers. Scattering toasted bread croutons over the surface adds not only a visual accent but also a crisp texture. Details like these can turn a simple soup into a festive dish.
A bit of history
Kachkéis Soup is a traditional dish firmly rooted in Luxembourgish cooking. The combination of regional cheeses and simple ingredients mirrors the landscape and cultural variety of the country. Historically, humble ingredients were what rural kitchens had to work with, which made this soup a symbol of country cooking — a thread it shares with rustic classics such as Bouneschlupp and Kniddelen. Today Kachkéis Soup is valued not only in Luxembourgish homes but also in restaurants serving the traditional dishes of Luxembourgish cuisine.
More recipe ideas
Summary: Kachkéis Soup
In summary, Kachkéis Soup is a hearty, warming dish that represents the cooking of Luxembourg. With its mix of regional ingredients and its creamy consistency, it is a delicious option for any occasion. Whether prepared with special adaptations or in its traditional form, Kachkéis Soup delights again and again. Enjoy the variety and the flavours this classic Luxembourgish dish has to offer!
