Triple Berry Pie | Publix Super Markets

Ingredients

• 1 (15 oz) package refrigerated rolled piecrusts
• 1 lemon, for juice
• 1 cup granulated sugar
• 3 tablespoons cornstarch
• 2 tablespoons quick-cooking tapioca
• 1/4 teaspoon kosher salt
• 7 cups mixed fresh berries (blackberries, raspberries, and blueberries)
• 1 large egg
• 1 tablespoon coarse sugar