2 teaspoons confectioners' sugar
1 teaspoon salt
3 ounces cold, unsalted butter, cut into pieces
4 ounces lard or vegetable shortening, cut into pieces
1 egg yolk
6 tablespoons cold water
10 ounces chuck steak, trimmed and cut into scant 1/4-inch dice
1 small onion, very finely chopped
1 medium carrot, cut into 1/4-inch dice
1 small Idaho potato, cut into 1/4-inch dice
1 1/2 teaspoons salt
3/4 teaspoon freshly ground black pepper
1 egg, lightly beaten
2 1/4 cups all-purpose flour