Put all the ingredients for the dough in a bowl and mix carefully.
Line a baking sheet with baking paper and spoon 1/2 tablespoon portions onto the paper and press flat with moistened hands. The dough is a bit stubborn, so press and stretch it properly until the dough is spread as thinly as possible. If you don't get a perfectly round cracker shape: Don't worry! This shows that the crackers are handmade.
Sprinkle with fleur de sel and freshly ground black pepper and bake for about 13–15 minutes, until the crackers are lightly browned. Better to leave it in the oven a little too long than too short, so that the crackers get nicely crisp.