Place flour, salt, and sugar into the device's bowl.
Add butter, processing for 8 to 10 seconds, or until the mixture resembles coarse flour.
While the machine runs, slowly add the ice water, pulsing, until the dough holds together without being sticky. Be cautious not to over-process, aiming for under 30 seconds.
If needed, add more ice water, 1 tablespoon at a time.
Once combined, form the dough into a disc, wrap in plastic, and chill for at least 1 hour.