Place the flour, salt, and sugar in the bowl of a food processor, and process for a few seconds to combine.
Add the butter, and process until the mixture resembles coarse meal, about 10 seconds.
With the machine running, add the ice water in a slow, steady stream, through the feed tube, just until the dough holds together. Do not process for more than 30 seconds.
Turn the dough out onto a work surface. Divide in two. Place each half on a sheet of plastic wrap.
Flatten, and form two discs. Wrap, and refrigerate at least 1 hour before using.
A combo of ice water with vodka or apple cider vinegar is a great trick to get an extra flaky crust!