Salmon en Croute

Directions

1. 1Preheat the oven to 200 degrees Celsius.
2. 2In a large bowl, add the flour and butter. Using your hands, disintegrate the butter and mix with the flour for a grainy texture.
3. 3Add the salt and water.
4. 4Knead until smooth and shape into a ball.
5. 5Using a rolling pin stretch the dough until it is 1 centimeter thick.
6. 6Place on a tray, cover with plastic wrap and refrigerate.
7. 7In the food processor, mix the Mascarpone cheese, watercress, arugula, and spinach to make a paste.
8. 8Stretch the dough until it is thin and place the salmon fillet on top of one side of the dough. Season with salt and spread the cheese paste on top.
9. 9Close the dough and seal the borders with water and press down using a fork.
10. 10Score the surface of the dough to let the steam come out.
11. 11Beat the egg and brush the surface of the dough.
12. 12Bake for 30 minutes and serve.