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. Add eggs, and pulse just until dough comes together, stopping to scrape sides of bowl. (Mixture should be moist but not sticky and hold together when pinched.) Turn out dough, and divide in half; shape each half into a 5½-inch square. Wrap in plastic wrap, and refrigerate for at least 25 minutes.