Blueberry Balsamic Pie with Black Pepper - SippitySup

Ingredients

• 390 grams all-purpose flour (plus more for rolling)
• 1 ¼ teaspoon kosher salt (divided)
• 20 tablespoons chilled unsalted butter (cut into ½‑inch dice)
• 2–3 ice cubes
• ⅓ cup very cold water (plus more if necessary)
• 2 pounds fresh blueberries
• ¼ cup corn starch
• 2/3 cup granulated sugar
• 2 tablespoons Honey Ridge Farms Balsamic Honey Vinegar (see note)
• 1 teaspoon vanilla extract
• ¼ teaspoon cinnamon
• ¼ teaspoon freshly cracked black pepper
• 1 egg yolk (mixed with 1 teaspoon water as egg wash)
• 1 tablespoon turbinado sugar