I agree with the consensus here. A simple thing to remember is that pastry dough typically has 1/3 the weight of the flour in liquid. That's very little. Typical bakers percentage for sweet pastry (pâte sucrée) are 100% flour, 66% butter, 33% liquid, 10% sugar, and 1/2% salt If you don't like numbers, a way to tell if the hydration is right and the mixing is adequate is to grab a pinch. If it barely holds together, and tends to crack and crumble, you're there. As unlikely as it seems. If I can't get the dough to form a ball, I'll pile it in bowl and let it sit covered in the fridge for 20 minutes or so. That rest can allow the flour to hydrate enough to form dough. When the dough does its final rest in the fridge (at least 30 minutes, but I find 24 hours is ideal) the flour will fully hydrate and it will become manageable enough to roll out. It will also develop better flavor. As djyee said, this part is important. If you try to get it doughlike too quickly, by adding more water or by overworking it, you'll get a brick. Some other things that will help tenderize the crust are higher butterfat buttter (french farm style butter is as much as 86% butterfat, vs. 80% for most supermarket butter) and pastry flour (buy it or make your own by blending AP flour with cake flour or corn starch). Roll out and form as others have suggested (and I give another vote for Julia Child's instructions, but I much prefer all butter over her butter/shortening mix). Just make shure to work quickly, and to work the dough as little as possible. If the kitchen is warm, the dough may get sticky. If so, stop, and put it in the fridge for 20 minutes or so to relax it and re-solidify the butter. If you let the butter melt, you'll end up again with a brick. [Edited! I wrote the percentages from memory and got them wrong]