Plum-Blackberry Pie Recipe | Saveur

Ingredients

• 3¼ cups all-purpose flour, plus more for dusting
• 1 Tbsp. plus 1 tsp. sugar
• 1 tsp. kosher salt
• 12 Tbsp. unsalted butter, cubed and chilled, plus more for greasing
• ⅓ cup vegetable shortening, chilled
• 1 lb. fresh plums, pitted and sliced into ⅓-in. pieces (about 6 cups)
• 5 oz. fresh or frozen blackberries (about 1 cup)
• 3 Tbsp. sugar
• 1 tsp. vanilla extract
• ½ tsp. kosher salt
• ¼ cup plus 1 Tbsp. cornstarch