1. we start by flattening the dough. Even if you buy thin crust that is already sold as 'super thin' you have to make it even thinner. Make it so thin that you can fill 2 baking sheets with it (yes, you will make two large flammkuchen - since they are thin you need one per person) :) I take two pieces of parchment paper, put the dough in between and flatten it using a bottle (e.g. wine). It has to be as thin as possible (1-2 mm).