Ingredients
Method
Preparation
- In a large pot, melt 20 grs of butter. Sauté the sliced onions until they’re translucent.
- Add the hachis de boeuf and cook until browned.
- Mix in the 4 pots of bolognaise sauce and concentrated tomato diluted in some sauce. Season with salt, pepper, and herbes de provence, then let it simmer while stirring occasionally.
Making Béchamel
- Melt the remaining 30 grs of butter in a saucepan. Add 6 tablespoons of flour to create a roux.
- Gradually whisk in 1 liter of milk and keep stirring until it thickens.
- Remove from heat, then stir in 1 egg yolk, salt, and pepper.
Assembling and Baking
- In a baking dish, drizzle a little oil to grease.
- Layer lasagna sheets, béchamel, meat sauce, and repeat until all ingredients are used up.
- Finish with a layer of meat sauce topped with grated Emmental.
- Cover with aluminum foil and bake in the oven at 200°C for about 50 minutes.
- Enjoy!
Notes
Serve with a sprinkle of fresh parsley, side salad, and crusty bread. Leftovers can be stored in the fridge for 3–5 days or frozen for up to 3 months.
