Triple Berry Pie

Bahan-bahan (8 porsi)

• Homemade Pie Crust or All Butter Pie Crust (both recipes make 2 crusts, 1 for bottom and 1 for top)
• 3 cups (about 435g) fresh blueberries, divided
• 1 and 1/2 cups (about 188g) fresh raspberries, divided
• 1 and 1/2 cups (about 240g) fresh blackberries, divided
• 1 cup (200g) granulated sugar
• 1/4 teaspoon ground cinnamon
• 1/3 cup (40g) cornstarch
• 1 Tablespoon (15ml) fresh lemon juice
• 1 teaspoon fresh lemon zest
• 1 teaspoon pure vanilla extract
• egg wash: 1 large egg beaten with 1 Tablespoon (15ml) milk
• optional: coarse sugar for sprinkling on crust