In the work bowl of a food processor, place flour, sugar, and salt; pulse until combined. Add cold butter, and pulse until mixture is crumbly.
In a small bowl, combine 6 tablespoons (90 grams) ice water and vanilla bean paste. With processor running, pour vanilla mixture through food chute in a slow, steady stream just until dough comes together. (Mixture may appear crumbly. It should be moist and hold together when pinched.)
Turn out dough, and shape into a disk. Wrap tightly in plastic wrap, and refrigerate for at least 30 minutes. Dough may be refrigerated for up to 3 days or frozen for up to 2 months.