Mixed Berry Tart –

Ingredients

• 1 1/4 cup all-purpose flour
• 1/2 teaspoon kosher salt
• 6 tablespoons unsalted butter, cold, cut in cubes
• 1/4 cup cold water
• 1/4 cup milk, for brushing
• 2 cups blueberries
• 2 cups blackberries
• 2 tablespoons all-purpose flour
• 1 tablespoon corn starch
• 1/3 cup granulated sugar, plus more for dusting