Mixed Berry Slab Pie - VeryVera

Ingredients

• 312 1/2 g All Purpose Flour (about 2 ½ cups)
• 1 tbsp. Granulated sugar
• 1 tsp. Kosher Salt
• ¼ cup - 1 cup water
• 16 tbsp. (2 sticks) Unsalted Butter
• 2 c fresh or frozen cherries, thawed and drained, if using frozen
• 16 oz (2 cups) fresh strawberries, hulled, sliced
• 6 oz (1 1/2 cups) fresh blackberries
• 6 oz (1 1/2 cups) fresh blueberries
• 6 oz (1 cup) fresh raspberries
• 2 tsp. orange zest
• 1 c sugar
• 1/2 c cornstarch
• 1 large Land O Lakes® Egg beaten
• Sanding sugar