naturist wrote:
Vodka, my friend, vodka. Not to drink, but to make the crust.
To get the crust to hang together, you have to wet the flour, and most folks use water. But water creates gluten, and too much water makes the crust chewy/hard instead of flaky. The trick is to use alcohol instead of water. This will allow you to use more liquid so the crust hangs together when you form it, but when you bake it, the alcohol boils away, leaving a flaky crust.
source
And here
Water creates gluten? I don't think so, the flour contains gluten proteins. Any liquid will activate the gluten in flour, including Vodka, which has water in it.