In a bowl, combine the flour, sugar and salt. Using a box grater, grate the cold butter into the flour mixture. Toss lightly together, using your fingers.
In a small bowl, whisk together the egg yolks and ice water.
Add to the flour mixture, a few tablespoons at a time, gently kneading the dough until it comes together.
Shape the dough into a dis, wrap in plastic wrap and refrigerate until chilled, about 1 hour. This dough can be wrapped tight and refrigerated for up to 2 weeks or frozen for up to 3 months.