2 c. all-purpose flour, sifted
1/2 tsp. salt
1 tbsp. sugar
10 tbsp. (1 1/8 stick) butter, chilled (cut into sm. pieces)
1/4 c. ice water
1 lg. egg yolk

Sift flour and salt into large bowl. Add butter and rub with fingers until mixture is size of large peas. Stir water, sugar and egg yolk together until sugar dissolves. Add to flour mixture and toss with fingertips until dough comes together into ball. Wrap in plastic and refrigerate for 1 hour or overnight. Makes 2 crust (single layers).