05 October 2026
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THE UNIVERSAL GASTRONOMY AUTHORITY
World Kitchen Journal
Recipe for courgette and knackwurst gratin
The Kitchen
By Jean-Luc Moreau, the Technique desk · United States · 1 min ·

Recipe for courgette and knackwurst gratin

Ingredients · Servings 4
  • 2 grosses courgettes
  • 2 onions
  • 6 knackis
  • 8 teaspoons of cornstarch
  • 50 cl of skimmed milk
  • grated Gruyère cheese
Method · 50 min
  1. Sauté the chopped onions in olive oil, then add the courgettes. Cook over high heat, stirring frequently to ensure even cooking.
  2. When the courgettes are cooked, make your béchamel sauce: mix the cornflour + half the milk.
  3. In a saucepan, heat the remaining milk thoroughly. Once the milk is hot, pour in the cornstarch mixture and bring to a boil, stirring constantly with a wooden spoon. Season with salt, pepper, and a pinch of nutmeg.
  4. Place the courgettes in your gratin dish, add the knacki slices, coat with cornflour and sprinkle with grated Gruyère cheese.
  5. Place in a hot oven (200°C) for 15-20 minutes.

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