Ingredients (for 2–3 servings)
- 100 g stale bread or pastries
- 250 g button mushrooms, preferably with large caps
- 1 small onion or half a large one (or leek)
- 1 egg
- 1 cup milk
- Salt, pepper, nutmeg, thyme, chili (if you like it spicy)
- 50–100 g cheese for gratin (Emmental, mountain cheese, etc.)
- Also: oil for sautéing and parchment paper
Enjoy!