Prepare the cremer puff paste. To do this, bring the water with the butter and a pinch of salt to a boiling point.
3
Away from the stove, add the flour in one shot and blend thoroughly with a wooden spatula.
4
You obtain a "panade" dough. Dry the panade by constantly stirring until it doesn't stick to the sides of the pot anymore.
5
Take away from the heat and let it cool. Add the eggs one after the other. Mix well before adding the next egg.
6
Add the grated gruyère.
7
Blend well. Keep aside.
8
Prepare a with the flour and butter in order to make a bechamel sauce.
9
Pour the boiling milk on the cold white roux and whisk thoroughly over medium heat until boiling resumes. Add salt, pepper, and a bit of grated nutmeg.
10
Cook the sauce for 3-4 minutes, stirring constantly to prevent it from sticking to the pot. Season again if needed.
11
Fill up a pastry bag equiped with a plain nozzle (#14 or 16) with the cream puff paste. Drop little 2 cm-large (0,79 inch) knobs in simmering water. You can use a short knife.
12
Let it for 6 to 8 minutes in boiling water.
13
When cooked, transfer in a bowl of cold water to stop the cooking process.
14
Drain.
15
the bottom of a gratin or clay dish - or even individual baking dishes - with bechamel.
16
Spread a layer of gnocchis...
17
...coat again with bechamel...
18
...and cover with grated grated gruyère and knobs of butter.
19
Bake in a warm oven (150°C or 302°F) for 15 minutes.