Weigh the ingredients and leave the butter until it has softened.
Put all ingredients into a mixing bowl and mix them together with one hand as fast as possible.
In less than two minutes it should look like this.
Press it onto a piece of parchment paper.
Put another piece on top.
Roll it in one direction only and turn the paper for every time you roll.
When the sheet of dough is 3-4mm it's ready to transfer onto a board and put it into the freezer for 30 minutes.
When your choux pastry is ready, you can cut out the craquelin with a cutter that fits your cakes.
This is the size I use for my cream puffs.
Place each craquelin on top of your choux pastries.
Bake the choux pastries according to the recipe. The link for the Choux Pastry is below.
This is how your choux pastries could look after baking, with a pretty crispy craquelin cookie on top, enjoy!