Balsamic Blueberry Pie

Ingredients

• 3 cups all-purpose flour or King Arthur Gluten-free Measure for Measure Flour
• ¾ cup cold butter, sliced
• 6 Tablespoons cold vegetable shortening, sliced
• 1 teaspoon kosher salt
• 4 – 6 Tablespoons ice cold water
• 7 cups fresh blueberries
• ¼ cup cornstarch
• 3 Tablespoons Rocky Mountain Olive Oil Strawberry Balsamic Vinegar
• ½ cup sugar
• 1/3 cup honey
• 1 teaspoon vanilla extract
• ¼ teaspoon kosher salt
• ¼ teaspoon ground cinnamon
• 1/8 teaspoon finely ground black pepper
• 2 Tablespoons butter, cut into ¼” cubes
• 1 large egg