Pie Crust - cooking recipe

Ingredients

3 1/2 c. flour
1/2 c. sugar
1 1/2 c. chilled butter
1 c. chilled shortening
2 egg yolks
1 tsp. salt
3/4 c. ice water
1 tsp. mace
1 Tbsp. vinegar

Preparation

Whip egg yolks, vinegar and ice water together before using.