Note: As with any dough, you may need to adjust consistency due to variability of flours and humidity. If the dough is too crumbly or dry, sprinkle it with a few drops of water at a time until the dough can be rolled easily (try to add as little as possible). If the dough is too sticky, dust it lightly with a tablespoon of flour at a time, until the dough may be rolled without sticking. The 15 minute resting period is very important as it allows the dough to hydrate and makes it easier to roll.