Summer Berry Double-Crust Slab Pie Recipe - Los Angeles Times

Ingredients

• 5 cups all-purpose flour, plus more for dusting
• 2 tablespoons sugar
• 1 heaping tablespoon kosher salt
• 1 pound (4 sticks) unsalted butter, cut into cubes and cold
• 1/2 cup heavy cream
• 1/2 to 1 cup ice-cold water, as needed
• 2 cups blackberries
• 2 cups strawberries
• 2 cups blueberries
• 2 cups raspberries
• 1 cup (200 grams) sugar
• 1/4 cup cornstarch
• 2 tablespoons lemon juice
• 1 tablespoon vanilla bean paste or pure vanilla extract
• 1 teaspoon ground cinnamon
• 2 tablespoons unsalted butter, cut into cubes
• 1 tablespoon heavy cream or whole milk
• Turbinado or sanding (crystal) sugar