Tory Burch Cherry Berry Pie - Pankobunny

Ingredients

• 2 ½ cups flour (plus extra for rolling out)
• 1 tsp salt
• 1 tsp sugar
• 1 cup cold unsalted butter (cut into cubes)
• ¼ cup to ½ cup very cold water
• 1 ½ pounds frozen cherries (thawed)
• 1 carton raspberries
• 1 carton blackberries
• ½ cup + 1/2 tbsp granulated sugar
• 2 1/2 tbsp cornstarch
• 2 tablespoons lemon juice
• 1 egg yolk
• 1 tablespoon water