1. In a food processor add flour, sugar and salt.

2. Next add well chilled butter and well chilled shortening.

3. Pulse 3-4 times for 2-3 seconds each time, until crumbly.

4. In a small bowl blend egg yolk and water.

5. Pour over the flour mixture in the food processor and pulse 2-4 times, for 2-3 seconds each time, until the mixture pulls away from the sides of the bowl and clings together.

6. Now remove the dough, cover and chill for a ½ hour.

7. Flour your work surface and rolling pin when working the dough.

8. Roll to desired size.