Preheat the oven to 170° C w/ fan.
Line a baking tray w/ baking parchment.
Whisk together the eggs, the icing sugar, the vanilla extract & the salt until foamy.
Fold in the water.
Sieve the flour & fold in.
Pour the mess onto the prepared baking tray; spread evenly.
Bake for about 15 min until slightly brown.
Let it cool on a cooling rack; after about 5 min remove the baking tray.
When cooled down peel off the baking parchment.