strawberry rhubarb pie

INGREDIENTS

• 3 cups all purpose flour
• 2 1/2 teaspoons sugar
• 3/4 teaspoon salt
• 2/3 cup chilled solid vegetable shortening, cut into pieces
• 1/2 cup plus 2 tablespoons (1 1/4 sticks) chilled unsalted butter, cut into pieces
• 10 tablespoons (about) ice water
• 3 1/2 cups 1/2-inch-thick slices trimmed rhubarb (1 1/2 pounds untrimmed)
• 1 16-ounce container strawberries, hulled, halved (about 3 1/2 cups)
• 1/2 cup (packed) golden brown sugar
• 1/2 cup sugar
• 1/4 cup cornstarch
• 1 teaspoon ground cinnamon
• 1/4 teaspoon salt
• 1 large egg yolk beaten to blend with 1 teaspoon water (for glaze)