Ultimate Wild Blueberry Pie | Reader's Digest

Ingredients

• 2 1/2 cups all-purpose flour
• 1 tbsp sugar
• 1 tsp salt
• 2 1/2 sticks cool unsalted butter (cut into 1/2-inch cubes)
• 7-8 tbsp water (ice cold)
• 1 egg (beaten)
• 5 cups frozen wild blueberries
• 1/2 cup sugar
• 1 tsp lemon juice
• 1/2 tsp cinnamon
• 1/4 cup tapioca starch
• 1 1/2 tbsp cold butter (cut into 1/2-inch cubes)