Family Tested & Approved
Mix flour, sugar, and salt in bowl. Add chilled butter mix until it looks like corn meal. Add egg yolk, and mix until well blended. Add ice water a drop at a time until a ball forms.
Turn pastry out onto wax paper and knead lightly. Wrap dough and refrigerate 2 hours. Roll out and use as desired. Bake to recipe specifications for whatever you are making with the dough.