RecipesLuxembourgKachkéis Fondue with Mustard Croutons

Kachkéis Fondue with Mustard Croutons

A unique Luxembourgish cooked cheese fondue, known for its stringy and gloopy texture, served with crispy, mustard-coated croutons. This dish is a delightful and comforting experience.

Prep20 minutes
Cook30 minutes
Total50 minutes
Serves4
LevelEasy
Kachkéis Fondue with Mustard Croutons - Luxembourg traditional dish

🧂 Ingredients

  • 1.5 medium Baguette(cut into bite-sized pieces)
  • 4.5 tbsp Wholegrain mustard
  • 4.5 tbsp Smooth mustard
  • 3 tbsp Water(for croutons)
  • 500 g Kachkéis log(uncooked, cut into pieces)
  • 200 ml White wine
  • 50 ml Cream
  • 2 large Garlic cloves(peeled and crushed)
  • 300 g Gruyère cheese(grated)
  • 3 tbsp Cornflour
  • 70 ml Kirsch
  • 1 tsp Salt(for croutons)
  • 1 tsp Black pepper(freshly ground)

💡 Pro Tips

  • Kachkéis can be found in some specialty European delis or online.
  • If Kirsch is unavailable, a splash of brandy or even water can be used, though Kirsch adds a traditional flavor.
  • Clean the fondue pot immediately after use to prevent cheese from hardening.

Twist Ideas

Inspiration for your own version of this recipe

  • Add a pinch of nutmeg to the fondue for extra warmth.
  • Serve with crusty bread or boiled potatoes instead of croutons.
  • For a less alcoholic version, omit the Kirsch or replace with a little more water.

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